Home / 71,997.15-99,354.15-40,165.23

Finding the Fourth Proportional to 71,997.15, 99,354.15 and 40,165.23

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Solution

The fourth proportional to 71,997.15, 99,354.15 and 40,165.23 is: 55,426.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,997.15 : 99,354.15 = 40,165.23 : x
  2. Step 2: Convert to fraction form
    71,997.15/99,354.15 = 40,165.23/x
  3. Step 3: Cross multiply
    71,997.15x = 99,354.15 × 40,165.23
  4. Step 4: Simplify right side
    71,997.15x = 3,990,582,286.20
  5. Step 5: Solve for x
    x = 3,990,582,286.20/71,997.15
  6. Step 6: Final answer
    x = 55,426.95

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1.5x scale

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.