Home / 77,229.76-106,508.64-52,113.28

Finding the Fourth Proportional to 77,229.76, 106,508.64 and 52,113.28

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Solution

The fourth proportional to 77,229.76, 106,508.64 and 52,113.28 is: 71,870.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,229.76 : 106,508.64 = 52,113.28 : x
  2. Step 2: Convert to fraction form
    77,229.76/106,508.64 = 52,113.28/x
  3. Step 3: Cross multiply
    77,229.76x = 106,508.64 × 52,113.28
  4. Step 4: Simplify right side
    77,229.76x = 5,550,514,578.74
  5. Step 5: Solve for x
    x = 5,550,514,578.74/77,229.76
  6. Step 6: Final answer
    x = 71,870.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.