Home / 90,442.05-124,666.17-71,290.76

Finding the Fourth Proportional to 90,442.05, 124,666.17 and 71,290.76

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Solution

The fourth proportional to 90,442.05, 124,666.17 and 71,290.76 is: 98,267.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,442.05 : 124,666.17 = 71,290.76 : x
  2. Step 2: Convert to fraction form
    90,442.05/124,666.17 = 71,290.76/x
  3. Step 3: Cross multiply
    90,442.05x = 124,666.17 × 71,290.76
  4. Step 4: Simplify right side
    90,442.05x = 8,887,545,382.26
  5. Step 5: Solve for x
    x = 8,887,545,382.26/90,442.05
  6. Step 6: Final answer
    x = 98,267.85

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1.5x scale

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.