Home / 83,788.66-115,645.98-53,141.92

Finding the Fourth Proportional to 83,788.66, 115,645.98 and 53,141.92

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Solution

The fourth proportional to 83,788.66, 115,645.98 and 53,141.92 is: 73,347.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,788.66 : 115,645.98 = 53,141.92 : x
  2. Step 2: Convert to fraction form
    83,788.66/115,645.98 = 53,141.92/x
  3. Step 3: Cross multiply
    83,788.66x = 115,645.98 × 53,141.92
  4. Step 4: Simplify right side
    83,788.66x = 6,145,649,417.48
  5. Step 5: Solve for x
    x = 6,145,649,417.48/83,788.66
  6. Step 6: Final answer
    x = 73,347.03

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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.