Home / 47,400.40-71,014.20-38,587.60

Finding the Fourth Proportional to 47,400.40, 71,014.20 and 38,587.60

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Solution

The fourth proportional to 47,400.40, 71,014.20 and 38,587.60 is: 57,811.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,400.40 : 71,014.20 = 38,587.60 : x
  2. Step 2: Convert to fraction form
    47,400.40/71,014.20 = 38,587.60/x
  3. Step 3: Cross multiply
    47,400.40x = 71,014.20 × 38,587.60
  4. Step 4: Simplify right side
    47,400.40x = 2,740,267,543.92
  5. Step 5: Solve for x
    x = 2,740,267,543.92/47,400.40
  6. Step 6: Final answer
    x = 57,811.06

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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.