Home / 71,539.45-107,309.78-27,154.28

Finding the Fourth Proportional to 71,539.45, 107,309.78 and 27,154.28

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Solution

The fourth proportional to 71,539.45, 107,309.78 and 27,154.28 is: 40,731.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,539.45 : 107,309.78 = 27,154.28 : x
  2. Step 2: Convert to fraction form
    71,539.45/107,309.78 = 27,154.28/x
  3. Step 3: Cross multiply
    71,539.45x = 107,309.78 × 27,154.28
  4. Step 4: Simplify right side
    71,539.45x = 2,913,919,812.86
  5. Step 5: Solve for x
    x = 2,913,919,812.86/71,539.45
  6. Step 6: Final answer
    x = 40,731.65

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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.