Home / 40,140.32-60,165.12-30,248.60

Finding the Fourth Proportional to 40,140.32, 60,165.12 and 30,248.60

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Solution

The fourth proportional to 40,140.32, 60,165.12 and 30,248.60 is: 45,338.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,140.32 : 60,165.12 = 30,248.60 : x
  2. Step 2: Convert to fraction form
    40,140.32/60,165.12 = 30,248.60/x
  3. Step 3: Cross multiply
    40,140.32x = 60,165.12 × 30,248.60
  4. Step 4: Simplify right side
    40,140.32x = 1,819,910,648.83
  5. Step 5: Solve for x
    x = 1,819,910,648.83/40,140.32
  6. Step 6: Final answer
    x = 45,338.72

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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.