Home / 90,411.17-124,767.88-52,172.31

Finding the Fourth Proportional to 90,411.17, 124,767.88 and 52,172.31

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Solution

The fourth proportional to 90,411.17, 124,767.88 and 52,172.31 is: 71,998.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,411.17 : 124,767.88 = 52,172.31 : x
  2. Step 2: Convert to fraction form
    90,411.17/124,767.88 = 52,172.31/x
  3. Step 3: Cross multiply
    90,411.17x = 124,767.88 × 52,172.31
  4. Step 4: Simplify right side
    90,411.17x = 6,509,428,850.85
  5. Step 5: Solve for x
    x = 6,509,428,850.85/90,411.17
  6. Step 6: Final answer
    x = 71,998.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.