Home / 91,502.46-126,279-51,218.73

Finding the Fourth Proportional to 91,502.46, 126,279 and 51,218.73

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Solution

The fourth proportional to 91,502.46, 126,279 and 51,218.73 is: 70,684.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,502.46 : 126,279 = 51,218.73 : x
  2. Step 2: Convert to fraction form
    91,502.46/126,279 = 51,218.73/x
  3. Step 3: Cross multiply
    91,502.46x = 126,279 × 51,218.73
  4. Step 4: Simplify right side
    91,502.46x = 6,467,850,005.67
  5. Step 5: Solve for x
    x = 6,467,850,005.67/91,502.46
  6. Step 6: Final answer
    x = 70,684.98

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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.