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Finding the Fourth Proportional to 40,703.20, 60,981.90 and 36,037.60

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Solution

The fourth proportional to 40,703.20, 60,981.90 and 36,037.60 is: 53,991.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,703.20 : 60,981.90 = 36,037.60 : x
  2. Step 2: Convert to fraction form
    40,703.20/60,981.90 = 36,037.60/x
  3. Step 3: Cross multiply
    40,703.20x = 60,981.90 × 36,037.60
  4. Step 4: Simplify right side
    40,703.20x = 2,197,641,319.44
  5. Step 5: Solve for x
    x = 2,197,641,319.44/40,703.20
  6. Step 6: Final answer
    x = 53,991.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.