Home / 83,613.40-125,420.10-50,435.80

Finding the Fourth Proportional to 83,613.40, 125,420.10 and 50,435.80

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Solution

The fourth proportional to 83,613.40, 125,420.10 and 50,435.80 is: 75,653.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,613.40 : 125,420.10 = 50,435.80 : x
  2. Step 2: Convert to fraction form
    83,613.40/125,420.10 = 50,435.80/x
  3. Step 3: Cross multiply
    83,613.40x = 125,420.10 × 50,435.80
  4. Step 4: Simplify right side
    83,613.40x = 6,325,663,079.58
  5. Step 5: Solve for x
    x = 6,325,663,079.58/83,613.40
  6. Step 6: Final answer
    x = 75,653.70

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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.