Home / 90,151.66-124,296.19-57,829.29

Finding the Fourth Proportional to 90,151.66, 124,296.19 and 57,829.29

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Solution

The fourth proportional to 90,151.66, 124,296.19 and 57,829.29 is: 79,731.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,151.66 : 124,296.19 = 57,829.29 : x
  2. Step 2: Convert to fraction form
    90,151.66/124,296.19 = 57,829.29/x
  3. Step 3: Cross multiply
    90,151.66x = 124,296.19 × 57,829.29
  4. Step 4: Simplify right side
    90,151.66x = 7,187,960,417.41
  5. Step 5: Solve for x
    x = 7,187,960,417.41/90,151.66
  6. Step 6: Final answer
    x = 79,731.87

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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.