Home / 83,689.13-125,375.38-64,876.98

Finding the Fourth Proportional to 83,689.13, 125,375.38 and 64,876.98

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Solution

The fourth proportional to 83,689.13, 125,375.38 and 64,876.98 is: 97,192.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,689.13 : 125,375.38 = 64,876.98 : x
  2. Step 2: Convert to fraction form
    83,689.13/125,375.38 = 64,876.98/x
  3. Step 3: Cross multiply
    83,689.13x = 125,375.38 × 64,876.98
  4. Step 4: Simplify right side
    83,689.13x = 8,133,976,328.72
  5. Step 5: Solve for x
    x = 8,133,976,328.72/83,689.13
  6. Step 6: Final answer
    x = 97,192.74

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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.