Home / 74,997.43-112,373.12-45,423.72

Finding the Fourth Proportional to 74,997.43, 112,373.12 and 45,423.72

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Solution

The fourth proportional to 74,997.43, 112,373.12 and 45,423.72 is: 68,061.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,997.43 : 112,373.12 = 45,423.72 : x
  2. Step 2: Convert to fraction form
    74,997.43/112,373.12 = 45,423.72/x
  3. Step 3: Cross multiply
    74,997.43x = 112,373.12 × 45,423.72
  4. Step 4: Simplify right side
    74,997.43x = 5,104,405,251.97
  5. Step 5: Solve for x
    x = 5,104,405,251.97/74,997.43
  6. Step 6: Final answer
    x = 68,061.07

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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.