Home / 91,419.85-126,148.04-51,123.52

Finding the Fourth Proportional to 91,419.85, 126,148.04 and 51,123.52

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Solution

The fourth proportional to 91,419.85, 126,148.04 and 51,123.52 is: 70,544.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,419.85 : 126,148.04 = 51,123.52 : x
  2. Step 2: Convert to fraction form
    91,419.85/126,148.04 = 51,123.52/x
  3. Step 3: Cross multiply
    91,419.85x = 126,148.04 × 51,123.52
  4. Step 4: Simplify right side
    91,419.85x = 6,449,131,443.44
  5. Step 5: Solve for x
    x = 6,449,131,443.44/91,419.85
  6. Step 6: Final answer
    x = 70,544.11

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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.