Home / 91,613.72-126,418.92-51,322.16

Finding the Fourth Proportional to 91,613.72, 126,418.92 and 51,322.16

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Solution

The fourth proportional to 91,613.72, 126,418.92 and 51,322.16 is: 70,820.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,613.72 : 126,418.92 = 51,322.16 : x
  2. Step 2: Convert to fraction form
    91,613.72/126,418.92 = 51,322.16/x
  3. Step 3: Cross multiply
    91,613.72x = 126,418.92 × 51,322.16
  4. Step 4: Simplify right side
    91,613.72x = 6,488,092,039.27
  5. Step 5: Solve for x
    x = 6,488,092,039.27/91,613.72
  6. Step 6: Final answer
    x = 70,820.09

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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.