Home / 40,278.40-60,417.60-39,587.20

Finding the Fourth Proportional to 40,278.40, 60,417.60 and 39,587.20

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Solution

The fourth proportional to 40,278.40, 60,417.60 and 39,587.20 is: 59,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,278.40 : 60,417.60 = 39,587.20 : x
  2. Step 2: Convert to fraction form
    40,278.40/60,417.60 = 39,587.20/x
  3. Step 3: Cross multiply
    40,278.40x = 60,417.60 × 39,587.20
  4. Step 4: Simplify right side
    40,278.40x = 2,391,763,614.72
  5. Step 5: Solve for x
    x = 2,391,763,614.72/40,278.40
  6. Step 6: Final answer
    x = 59,380.80

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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.