Home / 80,752.10-111,366.96-56,540.66

Finding the Fourth Proportional to 80,752.10, 111,366.96 and 56,540.66

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Solution

The fourth proportional to 80,752.10, 111,366.96 and 56,540.66 is: 77,976.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,752.10 : 111,366.96 = 56,540.66 : x
  2. Step 2: Convert to fraction form
    80,752.10/111,366.96 = 56,540.66/x
  3. Step 3: Cross multiply
    80,752.10x = 111,366.96 × 56,540.66
  4. Step 4: Simplify right side
    80,752.10x = 6,296,761,420.59
  5. Step 5: Solve for x
    x = 6,296,761,420.59/80,752.10
  6. Step 6: Final answer
    x = 77,976.44

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1.5x scale

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.