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Finding the Fourth Proportional to 80,959.60, 111,726.24 and 45,149.32

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Solution

The fourth proportional to 80,959.60, 111,726.24 and 45,149.32 is: 62,307.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,959.60 : 111,726.24 = 45,149.32 : x
  2. Step 2: Convert to fraction form
    80,959.60/111,726.24 = 45,149.32/x
  3. Step 3: Cross multiply
    80,959.60x = 111,726.24 × 45,149.32
  4. Step 4: Simplify right side
    80,959.60x = 5,044,363,762.16
  5. Step 5: Solve for x
    x = 5,044,363,762.16/80,959.60
  6. Step 6: Final answer
    x = 62,307.17

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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.