Home / 91,167.36-136,733.64-38,613.78

Finding the Fourth Proportional to 91,167.36, 136,733.64 and 38,613.78

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Solution

The fourth proportional to 91,167.36, 136,733.64 and 38,613.78 is: 57,913.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,167.36 : 136,733.64 = 38,613.78 : x
  2. Step 2: Convert to fraction form
    91,167.36/136,733.64 = 38,613.78/x
  3. Step 3: Cross multiply
    91,167.36x = 136,733.64 × 38,613.78
  4. Step 4: Simplify right side
    91,167.36x = 5,279,802,693.56
  5. Step 5: Solve for x
    x = 5,279,802,693.56/91,167.36
  6. Step 6: Final answer
    x = 57,913.30

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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.