Home / 47,518.40-71,191.20-38,705.60

Finding the Fourth Proportional to 47,518.40, 71,191.20 and 38,705.60

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Solution

The fourth proportional to 47,518.40, 71,191.20 and 38,705.60 is: 57,988.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,518.40 : 71,191.20 = 38,705.60 : x
  2. Step 2: Convert to fraction form
    47,518.40/71,191.20 = 38,705.60/x
  3. Step 3: Cross multiply
    47,518.40x = 71,191.20 × 38,705.60
  4. Step 4: Simplify right side
    47,518.40x = 2,755,498,110.72
  5. Step 5: Solve for x
    x = 2,755,498,110.72/47,518.40
  6. Step 6: Final answer
    x = 57,988.02

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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.