Home / 91,935.40-126,882.78-51,649.24

Finding the Fourth Proportional to 91,935.40, 126,882.78 and 51,649.24

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Solution

The fourth proportional to 91,935.40, 126,882.78 and 51,649.24 is: 71,282.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,935.40 : 126,882.78 = 51,649.24 : x
  2. Step 2: Convert to fraction form
    91,935.40/126,882.78 = 51,649.24/x
  3. Step 3: Cross multiply
    91,935.40x = 126,882.78 × 51,649.24
  4. Step 4: Simplify right side
    91,935.40x = 6,553,399,156.09
  5. Step 5: Solve for x
    x = 6,553,399,156.09/91,935.40
  6. Step 6: Final answer
    x = 71,282.65

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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.