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Finding the Fourth Proportional to 101,761.60, 140,439.90 and 59,319.24

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Solution

The fourth proportional to 101,761.60, 140,439.90 and 59,319.24 is: 81,865.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,761.60 : 140,439.90 = 59,319.24 : x
  2. Step 2: Convert to fraction form
    101,761.60/140,439.90 = 59,319.24/x
  3. Step 3: Cross multiply
    101,761.60x = 140,439.90 × 59,319.24
  4. Step 4: Simplify right side
    101,761.60x = 8,330,788,133.68
  5. Step 5: Solve for x
    x = 8,330,788,133.68/101,761.60
  6. Step 6: Final answer
    x = 81,865.73

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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.