Home / 51,398.24-77,098.18-18,118.72

Finding the Fourth Proportional to 51,398.24, 77,098.18 and 18,118.72

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Solution

The fourth proportional to 51,398.24, 77,098.18 and 18,118.72 is: 27,178.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,398.24 : 77,098.18 = 18,118.72 : x
  2. Step 2: Convert to fraction form
    51,398.24/77,098.18 = 18,118.72/x
  3. Step 3: Cross multiply
    51,398.24x = 77,098.18 × 18,118.72
  4. Step 4: Simplify right side
    51,398.24x = 1,396,920,335.93
  5. Step 5: Solve for x
    x = 1,396,920,335.93/51,398.24
  6. Step 6: Final answer
    x = 27,178.37

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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.