Home / 83,927.90-115,863.31-64,764.61

Finding the Fourth Proportional to 83,927.90, 115,863.31 and 64,764.61

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Solution

The fourth proportional to 83,927.90, 115,863.31 and 64,764.61 is: 89,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,927.90 : 115,863.31 = 64,764.61 : x
  2. Step 2: Convert to fraction form
    83,927.90/115,863.31 = 64,764.61/x
  3. Step 3: Cross multiply
    83,927.90x = 115,863.31 × 64,764.61
  4. Step 4: Simplify right side
    83,927.90x = 7,503,842,528.49
  5. Step 5: Solve for x
    x = 7,503,842,528.49/83,927.90
  6. Step 6: Final answer
    x = 89,408.20

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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.