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Finding the Fourth Proportional to 67,999.68, 93,755.21 and 45,288.90

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Solution

The fourth proportional to 67,999.68, 93,755.21 and 45,288.90 is: 62,442.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,999.68 : 93,755.21 = 45,288.90 : x
  2. Step 2: Convert to fraction form
    67,999.68/93,755.21 = 45,288.90/x
  3. Step 3: Cross multiply
    67,999.68x = 93,755.21 × 45,288.90
  4. Step 4: Simplify right side
    67,999.68x = 4,246,070,103.72
  5. Step 5: Solve for x
    x = 4,246,070,103.72/67,999.68
  6. Step 6: Final answer
    x = 62,442.50

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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.