Home / 81,026.64-121,552.92-34,279.92

Finding the Fourth Proportional to 81,026.64, 121,552.92 and 34,279.92

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Solution

The fourth proportional to 81,026.64, 121,552.92 and 34,279.92 is: 51,425.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,026.64 : 121,552.92 = 34,279.92 : x
  2. Step 2: Convert to fraction form
    81,026.64/121,552.92 = 34,279.92/x
  3. Step 3: Cross multiply
    81,026.64x = 121,552.92 × 34,279.92
  4. Step 4: Simplify right side
    81,026.64x = 4,166,824,373.37
  5. Step 5: Solve for x
    x = 4,166,824,373.37/81,026.64
  6. Step 6: Final answer
    x = 51,425.36

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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.