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Finding the Fourth Proportional to 71,766.60, 98,995.14 and 55,825.80

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Solution

The fourth proportional to 71,766.60, 98,995.14 and 55,825.80 is: 77,006.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,766.60 : 98,995.14 = 55,825.80 : x
  2. Step 2: Convert to fraction form
    71,766.60/98,995.14 = 55,825.80/x
  3. Step 3: Cross multiply
    71,766.60x = 98,995.14 × 55,825.80
  4. Step 4: Simplify right side
    71,766.60x = 5,526,482,886.61
  5. Step 5: Solve for x
    x = 5,526,482,886.61/71,766.60
  6. Step 6: Final answer
    x = 77,006.34

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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.