Home / 40,475.10-60,712.65-38,919.90

Finding the Fourth Proportional to 40,475.10, 60,712.65 and 38,919.90

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Solution

The fourth proportional to 40,475.10, 60,712.65 and 38,919.90 is: 58,379.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,475.10 : 60,712.65 = 38,919.90 : x
  2. Step 2: Convert to fraction form
    40,475.10/60,712.65 = 38,919.90/x
  3. Step 3: Cross multiply
    40,475.10x = 60,712.65 × 38,919.90
  4. Step 4: Simplify right side
    40,475.10x = 2,362,930,266.74
  5. Step 5: Solve for x
    x = 2,362,930,266.74/40,475.10
  6. Step 6: Final answer
    x = 58,379.85

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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.