Home / 91,857.28-126,770.36-51,573.68

Finding the Fourth Proportional to 91,857.28, 126,770.36 and 51,573.68

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Solution

The fourth proportional to 91,857.28, 126,770.36 and 51,573.68 is: 71,175.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,857.28 : 126,770.36 = 51,573.68 : x
  2. Step 2: Convert to fraction form
    91,857.28/126,770.36 = 51,573.68/x
  3. Step 3: Cross multiply
    91,857.28x = 126,770.36 × 51,573.68
  4. Step 4: Simplify right side
    91,857.28x = 6,538,013,980.12
  5. Step 5: Solve for x
    x = 6,538,013,980.12/91,857.28
  6. Step 6: Final answer
    x = 71,175.78

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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.