Home / 91,934.40-126,864.72-51,649.86

Finding the Fourth Proportional to 91,934.40, 126,864.72 and 51,649.86

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Solution

The fourth proportional to 91,934.40, 126,864.72 and 51,649.86 is: 71,274.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,934.40 : 126,864.72 = 51,649.86 : x
  2. Step 2: Convert to fraction form
    91,934.40/126,864.72 = 51,649.86/x
  3. Step 3: Cross multiply
    91,934.40x = 126,864.72 × 51,649.86
  4. Step 4: Simplify right side
    91,934.40x = 6,552,545,026.94
  5. Step 5: Solve for x
    x = 6,552,545,026.94/91,934.40
  6. Step 6: Final answer
    x = 71,274.14

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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.