Home / 91,977.50-137,966.25-36,612.38

Finding the Fourth Proportional to 91,977.50, 137,966.25 and 36,612.38

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Solution

The fourth proportional to 91,977.50, 137,966.25 and 36,612.38 is: 54,918.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,977.50 : 137,966.25 = 36,612.38 : x
  2. Step 2: Convert to fraction form
    91,977.50/137,966.25 = 36,612.38/x
  3. Step 3: Cross multiply
    91,977.50x = 137,966.25 × 36,612.38
  4. Step 4: Simplify right side
    91,977.50x = 5,051,272,772.18
  5. Step 5: Solve for x
    x = 5,051,272,772.18/91,977.50
  6. Step 6: Final answer
    x = 54,918.57

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.