Home / 48,060.60-72,116.72-20,000

Finding the Fourth Proportional to 48,060.60, 72,116.72 and 20,000

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Solution

The fourth proportional to 48,060.60, 72,116.72 and 20,000 is: 30,010.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,060.60 : 72,116.72 = 20,000 : x
  2. Step 2: Convert to fraction form
    48,060.60/72,116.72 = 20,000/x
  3. Step 3: Cross multiply
    48,060.60x = 72,116.72 × 20,000
  4. Step 4: Simplify right side
    48,060.60x = 1,442,334,400
  5. Step 5: Solve for x
    x = 1,442,334,400/48,060.60
  6. Step 6: Final answer
    x = 30,010.74

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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.