Home / 91,640.64-137,364.96-38,363.16

Finding the Fourth Proportional to 91,640.64, 137,364.96 and 38,363.16

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Solution

The fourth proportional to 91,640.64, 137,364.96 and 38,363.16 is: 57,504.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,640.64 : 137,364.96 = 38,363.16 : x
  2. Step 2: Convert to fraction form
    91,640.64/137,364.96 = 38,363.16/x
  3. Step 3: Cross multiply
    91,640.64x = 137,364.96 × 38,363.16
  4. Step 4: Simplify right side
    91,640.64x = 5,269,753,938.87
  5. Step 5: Solve for x
    x = 5,269,753,938.87/91,640.64
  6. Step 6: Final answer
    x = 57,504.55

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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.