Home / 71,401.10-107,101.65-54,812.30

Finding the Fourth Proportional to 71,401.10, 107,101.65 and 54,812.30

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Solution

The fourth proportional to 71,401.10, 107,101.65 and 54,812.30 is: 82,218.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,401.10 : 107,101.65 = 54,812.30 : x
  2. Step 2: Convert to fraction form
    71,401.10/107,101.65 = 54,812.30/x
  3. Step 3: Cross multiply
    71,401.10x = 107,101.65 × 54,812.30
  4. Step 4: Simplify right side
    71,401.10x = 5,870,487,770.30
  5. Step 5: Solve for x
    x = 5,870,487,770.30/71,401.10
  6. Step 6: Final answer
    x = 82,218.45

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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.