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Finding the Fourth Proportional to 91,911.80, 137,878.83 and 32,753.45

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Solution

The fourth proportional to 91,911.80, 137,878.83 and 32,753.45 is: 49,134.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,911.80 : 137,878.83 = 32,753.45 : x
  2. Step 2: Convert to fraction form
    91,911.80/137,878.83 = 32,753.45/x
  3. Step 3: Cross multiply
    91,911.80x = 137,878.83 × 32,753.45
  4. Step 4: Simplify right side
    91,911.80x = 4,516,006,675.07
  5. Step 5: Solve for x
    x = 4,516,006,675.07/91,911.80
  6. Step 6: Final answer
    x = 49,134.14

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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.