Home / 99,695.30-137,578.50-57,254.13

Finding the Fourth Proportional to 99,695.30, 137,578.50 and 57,254.13

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Solution

The fourth proportional to 99,695.30, 137,578.50 and 57,254.13 is: 79,010.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,695.30 : 137,578.50 = 57,254.13 : x
  2. Step 2: Convert to fraction form
    99,695.30/137,578.50 = 57,254.13/x
  3. Step 3: Cross multiply
    99,695.30x = 137,578.50 × 57,254.13
  4. Step 4: Simplify right side
    99,695.30x = 7,876,937,324.21
  5. Step 5: Solve for x
    x = 7,876,937,324.21/99,695.30
  6. Step 6: Final answer
    x = 79,010.12

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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.