Home / 83,398.28-115,103.06-47,589.80

Finding the Fourth Proportional to 83,398.28, 115,103.06 and 47,589.80

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Solution

The fourth proportional to 83,398.28, 115,103.06 and 47,589.80 is: 65,681.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,398.28 : 115,103.06 = 47,589.80 : x
  2. Step 2: Convert to fraction form
    83,398.28/115,103.06 = 47,589.80/x
  3. Step 3: Cross multiply
    83,398.28x = 115,103.06 × 47,589.80
  4. Step 4: Simplify right side
    83,398.28x = 5,477,731,604.79
  5. Step 5: Solve for x
    x = 5,477,731,604.79/83,398.28
  6. Step 6: Final answer
    x = 65,681.59

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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.