Home / 40,938.20-61,407.30-36,099.80

Finding the Fourth Proportional to 40,938.20, 61,407.30 and 36,099.80

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Solution

The fourth proportional to 40,938.20, 61,407.30 and 36,099.80 is: 54,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,938.20 : 61,407.30 = 36,099.80 : x
  2. Step 2: Convert to fraction form
    40,938.20/61,407.30 = 36,099.80/x
  3. Step 3: Cross multiply
    40,938.20x = 61,407.30 × 36,099.80
  4. Step 4: Simplify right side
    40,938.20x = 2,216,791,248.54
  5. Step 5: Solve for x
    x = 2,216,791,248.54/40,938.20
  6. Step 6: Final answer
    x = 54,149.70

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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.