Home / 87,003,061.28-120,061,685.40-47,844,797.12

Finding the Fourth Proportional to 87,003,061.28, 120,061,685.40 and 47,844,797.12

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Solution

The fourth proportional to 87,003,061.28, 120,061,685.40 and 47,844,797.12 is: 66,024,423.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,003,061.28 : 120,061,685.40 = 47,844,797.12 : x
  2. Step 2: Convert to fraction form
    87,003,061.28/120,061,685.40 = 47,844,797.12/x
  3. Step 3: Cross multiply
    87,003,061.28x = 120,061,685.40 × 47,844,797.12
  4. Step 4: Simplify right side
    87,003,061.28x = 5,744,326,979,848,266
  5. Step 5: Solve for x
    x = 5,744,326,979,848,266/87,003,061.28
  6. Step 6: Final answer
    x = 66,024,423.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.