Home / 91,550.16-137,281.32-38,931.12

Finding the Fourth Proportional to 91,550.16, 137,281.32 and 38,931.12

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Solution

The fourth proportional to 91,550.16, 137,281.32 and 38,931.12 is: 58,378.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,550.16 : 137,281.32 = 38,931.12 : x
  2. Step 2: Convert to fraction form
    91,550.16/137,281.32 = 38,931.12/x
  3. Step 3: Cross multiply
    91,550.16x = 137,281.32 × 38,931.12
  4. Step 4: Simplify right side
    91,550.16x = 5,344,515,542.68
  5. Step 5: Solve for x
    x = 5,344,515,542.68/91,550.16
  6. Step 6: Final answer
    x = 58,378.00

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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.