Home / 83,584.40-115,346.76-45,859.28

Finding the Fourth Proportional to 83,584.40, 115,346.76 and 45,859.28

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Solution

The fourth proportional to 83,584.40, 115,346.76 and 45,859.28 is: 63,285.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,584.40 : 115,346.76 = 45,859.28 : x
  2. Step 2: Convert to fraction form
    83,584.40/115,346.76 = 45,859.28/x
  3. Step 3: Cross multiply
    83,584.40x = 115,346.76 × 45,859.28
  4. Step 4: Simplify right side
    83,584.40x = 5,289,719,363.93
  5. Step 5: Solve for x
    x = 5,289,719,363.93/83,584.40
  6. Step 6: Final answer
    x = 63,285.96

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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.