Home / 71,422.77-107,068.55-38,165.79

Finding the Fourth Proportional to 71,422.77, 107,068.55 and 38,165.79

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Solution

The fourth proportional to 71,422.77, 107,068.55 and 38,165.79 is: 57,213.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,422.77 : 107,068.55 = 38,165.79 : x
  2. Step 2: Convert to fraction form
    71,422.77/107,068.55 = 38,165.79/x
  3. Step 3: Cross multiply
    71,422.77x = 107,068.55 × 38,165.79
  4. Step 4: Simplify right side
    71,422.77x = 4,086,355,604.08
  5. Step 5: Solve for x
    x = 4,086,355,604.08/71,422.77
  6. Step 6: Final answer
    x = 57,213.63

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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.