Home / 83,880.25-125,820.38-21,550.75

Finding the Fourth Proportional to 83,880.25, 125,820.38 and 21,550.75

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Solution

The fourth proportional to 83,880.25, 125,820.38 and 21,550.75 is: 32,326.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,880.25 : 125,820.38 = 21,550.75 : x
  2. Step 2: Convert to fraction form
    83,880.25/125,820.38 = 21,550.75/x
  3. Step 3: Cross multiply
    83,880.25x = 125,820.38 × 21,550.75
  4. Step 4: Simplify right side
    83,880.25x = 2,711,523,554.29
  5. Step 5: Solve for x
    x = 2,711,523,554.29/83,880.25
  6. Step 6: Final answer
    x = 32,326.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.