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Finding the Fourth Proportional to 91,857.52, 126,770.70 and 51,573.93

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Solution

The fourth proportional to 91,857.52, 126,770.70 and 51,573.93 is: 71,176.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,857.52 : 126,770.70 = 51,573.93 : x
  2. Step 2: Convert to fraction form
    91,857.52/126,770.70 = 51,573.93/x
  3. Step 3: Cross multiply
    91,857.52x = 126,770.70 × 51,573.93
  4. Step 4: Simplify right side
    91,857.52x = 6,538,063,207.85
  5. Step 5: Solve for x
    x = 6,538,063,207.85/91,857.52
  6. Step 6: Final answer
    x = 71,176.13

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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.