Home / 90,711.46-136,068.57-31,549.17

Finding the Fourth Proportional to 90,711.46, 136,068.57 and 31,549.17

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Solution

The fourth proportional to 90,711.46, 136,068.57 and 31,549.17 is: 47,324.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,711.46 : 136,068.57 = 31,549.17 : x
  2. Step 2: Convert to fraction form
    90,711.46/136,068.57 = 31,549.17/x
  3. Step 3: Cross multiply
    90,711.46x = 136,068.57 × 31,549.17
  4. Step 4: Simplify right side
    90,711.46x = 4,292,850,446.59
  5. Step 5: Solve for x
    x = 4,292,850,446.59/90,711.46
  6. Step 6: Final answer
    x = 47,324.23

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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.