Home / 78,761.29-108,693.30-44,771.20

Finding the Fourth Proportional to 78,761.29, 108,693.30 and 44,771.20

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Solution

The fourth proportional to 78,761.29, 108,693.30 and 44,771.20 is: 61,785.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,761.29 : 108,693.30 = 44,771.20 : x
  2. Step 2: Convert to fraction form
    78,761.29/108,693.30 = 44,771.20/x
  3. Step 3: Cross multiply
    78,761.29x = 108,693.30 × 44,771.20
  4. Step 4: Simplify right side
    78,761.29x = 4,866,329,472.96
  5. Step 5: Solve for x
    x = 4,866,329,472.96/78,761.29
  6. Step 6: Final answer
    x = 61,785.80

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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.