Home / 83,480.25-115,210.04-45,761.79

Finding the Fourth Proportional to 83,480.25, 115,210.04 and 45,761.79

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Solution

The fourth proportional to 83,480.25, 115,210.04 and 45,761.79 is: 63,155.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,480.25 : 115,210.04 = 45,761.79 : x
  2. Step 2: Convert to fraction form
    83,480.25/115,210.04 = 45,761.79/x
  3. Step 3: Cross multiply
    83,480.25x = 115,210.04 × 45,761.79
  4. Step 4: Simplify right side
    83,480.25x = 5,272,217,656.37
  5. Step 5: Solve for x
    x = 5,272,217,656.37/83,480.25
  6. Step 6: Final answer
    x = 63,155.27

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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.