Home / 48,069.32-72,129.84-20,008.75

Finding the Fourth Proportional to 48,069.32, 72,129.84 and 20,008.75

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Solution

The fourth proportional to 48,069.32, 72,129.84 and 20,008.75 is: 30,023.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,069.32 : 72,129.84 = 20,008.75 : x
  2. Step 2: Convert to fraction form
    48,069.32/72,129.84 = 20,008.75/x
  3. Step 3: Cross multiply
    48,069.32x = 72,129.84 × 20,008.75
  4. Step 4: Simplify right side
    48,069.32x = 1,443,227,725.67
  5. Step 5: Solve for x
    x = 1,443,227,725.67/48,069.32
  6. Step 6: Final answer
    x = 30,023.88

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1.5x scale

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.