Home / 47,987.61-71,981.41-25,770.43

Finding the Fourth Proportional to 47,987.61, 71,981.41 and 25,770.43

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Solution

The fourth proportional to 47,987.61, 71,981.41 and 25,770.43 is: 38,655.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,987.61 : 71,981.41 = 25,770.43 : x
  2. Step 2: Convert to fraction form
    47,987.61/71,981.41 = 25,770.43/x
  3. Step 3: Cross multiply
    47,987.61x = 71,981.41 × 25,770.43
  4. Step 4: Simplify right side
    47,987.61x = 1,854,991,759.13
  5. Step 5: Solve for x
    x = 1,854,991,759.13/47,987.61
  6. Step 6: Final answer
    x = 38,655.64

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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.