Home / 83,615.39-115,388.65-45,373.96

Finding the Fourth Proportional to 83,615.39, 115,388.65 and 45,373.96

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Solution

The fourth proportional to 83,615.39, 115,388.65 and 45,373.96 is: 62,615.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,615.39 : 115,388.65 = 45,373.96 : x
  2. Step 2: Convert to fraction form
    83,615.39/115,388.65 = 45,373.96/x
  3. Step 3: Cross multiply
    83,615.39x = 115,388.65 × 45,373.96
  4. Step 4: Simplify right side
    83,615.39x = 5,235,639,762.68
  5. Step 5: Solve for x
    x = 5,235,639,762.68/83,615.39
  6. Step 6: Final answer
    x = 62,615.75

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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.