Home / 83,587.13-115,358.34-47,770.29

Finding the Fourth Proportional to 83,587.13, 115,358.34 and 47,770.29

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Solution

The fourth proportional to 83,587.13, 115,358.34 and 47,770.29 is: 65,927.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,587.13 : 115,358.34 = 47,770.29 : x
  2. Step 2: Convert to fraction form
    83,587.13/115,358.34 = 47,770.29/x
  3. Step 3: Cross multiply
    83,587.13x = 115,358.34 × 47,770.29
  4. Step 4: Simplify right side
    83,587.13x = 5,510,701,355.72
  5. Step 5: Solve for x
    x = 5,510,701,355.72/83,587.13
  6. Step 6: Final answer
    x = 65,927.63

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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.