Home / 72,613.16-100,204.26-40,780.52

Finding the Fourth Proportional to 72,613.16, 100,204.26 and 40,780.52

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Solution

The fourth proportional to 72,613.16, 100,204.26 and 40,780.52 is: 56,276.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,613.16 : 100,204.26 = 40,780.52 : x
  2. Step 2: Convert to fraction form
    72,613.16/100,204.26 = 40,780.52/x
  3. Step 3: Cross multiply
    72,613.16x = 100,204.26 × 40,780.52
  4. Step 4: Simplify right side
    72,613.16x = 4,086,381,829.02
  5. Step 5: Solve for x
    x = 4,086,381,829.02/72,613.16
  6. Step 6: Final answer
    x = 56,276.05

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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.