Home / 51,456.90-77,129.04-26,498.46

Finding the Fourth Proportional to 51,456.90, 77,129.04 and 26,498.46

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Solution

The fourth proportional to 51,456.90, 77,129.04 and 26,498.46 is: 39,718.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,456.90 : 77,129.04 = 26,498.46 : x
  2. Step 2: Convert to fraction form
    51,456.90/77,129.04 = 26,498.46/x
  3. Step 3: Cross multiply
    51,456.90x = 77,129.04 × 26,498.46
  4. Step 4: Simplify right side
    51,456.90x = 2,043,800,781.28
  5. Step 5: Solve for x
    x = 2,043,800,781.28/51,456.90
  6. Step 6: Final answer
    x = 39,718.69

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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.