Home / 87,403.51-120,613.03-49,162.38

Finding the Fourth Proportional to 87,403.51, 120,613.03 and 49,162.38

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Solution

The fourth proportional to 87,403.51, 120,613.03 and 49,162.38 is: 67,841.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,403.51 : 120,613.03 = 49,162.38 : x
  2. Step 2: Convert to fraction form
    87,403.51/120,613.03 = 49,162.38/x
  3. Step 3: Cross multiply
    87,403.51x = 120,613.03 × 49,162.38
  4. Step 4: Simplify right side
    87,403.51x = 5,929,623,613.81
  5. Step 5: Solve for x
    x = 5,929,623,613.81/87,403.51
  6. Step 6: Final answer
    x = 67,841.94

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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.