Home / 83,439.10-115,144.50-51,599.62

Finding the Fourth Proportional to 83,439.10, 115,144.50 and 51,599.62

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Solution

The fourth proportional to 83,439.10, 115,144.50 and 51,599.62 is: 71,206.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,439.10 : 115,144.50 = 51,599.62 : x
  2. Step 2: Convert to fraction form
    83,439.10/115,144.50 = 51,599.62/x
  3. Step 3: Cross multiply
    83,439.10x = 115,144.50 × 51,599.62
  4. Step 4: Simplify right side
    83,439.10x = 5,941,412,445.09
  5. Step 5: Solve for x
    x = 5,941,412,445.09/83,439.10
  6. Step 6: Final answer
    x = 71,206.57

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1.5x scale

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.