Home / 55,337.10-82,876.05-42,117.90

Finding the Fourth Proportional to 55,337.10, 82,876.05 and 42,117.90

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Solution

The fourth proportional to 55,337.10, 82,876.05 and 42,117.90 is: 63,078.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,337.10 : 82,876.05 = 42,117.90 : x
  2. Step 2: Convert to fraction form
    55,337.10/82,876.05 = 42,117.90/x
  3. Step 3: Cross multiply
    55,337.10x = 82,876.05 × 42,117.90
  4. Step 4: Simplify right side
    55,337.10x = 3,490,565,186.30
  5. Step 5: Solve for x
    x = 3,490,565,186.30/55,337.10
  6. Step 6: Final answer
    x = 63,078.21

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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.