Home / 91,506.31-137,283.12-53,587.60

Finding the Fourth Proportional to 91,506.31, 137,283.12 and 53,587.60

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Solution

The fourth proportional to 91,506.31, 137,283.12 and 53,587.60 is: 80,395.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,506.31 : 137,283.12 = 53,587.60 : x
  2. Step 2: Convert to fraction form
    91,506.31/137,283.12 = 53,587.60/x
  3. Step 3: Cross multiply
    91,506.31x = 137,283.12 × 53,587.60
  4. Step 4: Simplify right side
    91,506.31x = 7,356,672,921.31
  5. Step 5: Solve for x
    x = 7,356,672,921.31/91,506.31
  6. Step 6: Final answer
    x = 80,395.25

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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.