Home / 83,677.10-125,345.55-51,989.90

Finding the Fourth Proportional to 83,677.10, 125,345.55 and 51,989.90

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Solution

The fourth proportional to 83,677.10, 125,345.55 and 51,989.90 is: 77,879.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,677.10 : 125,345.55 = 51,989.90 : x
  2. Step 2: Convert to fraction form
    83,677.10/125,345.55 = 51,989.90/x
  3. Step 3: Cross multiply
    83,677.10x = 125,345.55 × 51,989.90
  4. Step 4: Simplify right side
    83,677.10x = 6,516,702,609.95
  5. Step 5: Solve for x
    x = 6,516,702,609.95/83,677.10
  6. Step 6: Final answer
    x = 77,879.16

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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.