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Finding the Fourth Proportional to 60,138.87, 82,990.40 and 33,279.77

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Solution

The fourth proportional to 60,138.87, 82,990.40 and 33,279.77 is: 45,925.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,138.87 : 82,990.40 = 33,279.77 : x
  2. Step 2: Convert to fraction form
    60,138.87/82,990.40 = 33,279.77/x
  3. Step 3: Cross multiply
    60,138.87x = 82,990.40 × 33,279.77
  4. Step 4: Simplify right side
    60,138.87x = 2,761,900,842.86
  5. Step 5: Solve for x
    x = 2,761,900,842.86/60,138.87
  6. Step 6: Final answer
    x = 45,925.39

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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.