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Finding the Fourth Proportional to 73,127.78, 109,691.67 and 17,723.78

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Solution

The fourth proportional to 73,127.78, 109,691.67 and 17,723.78 is: 26,585.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,127.78 : 109,691.67 = 17,723.78 : x
  2. Step 2: Convert to fraction form
    73,127.78/109,691.67 = 17,723.78/x
  3. Step 3: Cross multiply
    73,127.78x = 109,691.67 × 17,723.78
  4. Step 4: Simplify right side
    73,127.78x = 1,944,151,026.91
  5. Step 5: Solve for x
    x = 1,944,151,026.91/73,127.78
  6. Step 6: Final answer
    x = 26,585.67

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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.