Home / 42,446.80-63,670.20-38,218.60

Finding the Fourth Proportional to 42,446.80, 63,670.20 and 38,218.60

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Solution

The fourth proportional to 42,446.80, 63,670.20 and 38,218.60 is: 57,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,446.80 : 63,670.20 = 38,218.60 : x
  2. Step 2: Convert to fraction form
    42,446.80/63,670.20 = 38,218.60/x
  3. Step 3: Cross multiply
    42,446.80x = 63,670.20 × 38,218.60
  4. Step 4: Simplify right side
    42,446.80x = 2,433,385,905.72
  5. Step 5: Solve for x
    x = 2,433,385,905.72/42,446.80
  6. Step 6: Final answer
    x = 57,327.90

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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.