Home / 115,327.20-172,964.64-52,937.76

Finding the Fourth Proportional to 115,327.20, 172,964.64 and 52,937.76

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Solution

The fourth proportional to 115,327.20, 172,964.64 and 52,937.76 is: 79,394.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,327.20 : 172,964.64 = 52,937.76 : x
  2. Step 2: Convert to fraction form
    115,327.20/172,964.64 = 52,937.76/x
  3. Step 3: Cross multiply
    115,327.20x = 172,964.64 × 52,937.76
  4. Step 4: Simplify right side
    115,327.20x = 9,156,360,600.81
  5. Step 5: Solve for x
    x = 9,156,360,600.81/115,327.20
  6. Step 6: Final answer
    x = 79,394.63

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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.