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Finding the Fourth Proportional to 79,997.16, 120,024.90 and 42,560.58

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Solution

The fourth proportional to 79,997.16, 120,024.90 and 42,560.58 is: 63,856.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,997.16 : 120,024.90 = 42,560.58 : x
  2. Step 2: Convert to fraction form
    79,997.16/120,024.90 = 42,560.58/x
  3. Step 3: Cross multiply
    79,997.16x = 120,024.90 × 42,560.58
  4. Step 4: Simplify right side
    79,997.16x = 5,108,329,358.44
  5. Step 5: Solve for x
    x = 5,108,329,358.44/79,997.16
  6. Step 6: Final answer
    x = 63,856.38

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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.