Home / 91,431.46-126,185.88-51,155.43

Finding the Fourth Proportional to 91,431.46, 126,185.88 and 51,155.43

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Solution

The fourth proportional to 91,431.46, 126,185.88 and 51,155.43 is: 70,600.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,431.46 : 126,185.88 = 51,155.43 : x
  2. Step 2: Convert to fraction form
    91,431.46/126,185.88 = 51,155.43/x
  3. Step 3: Cross multiply
    91,431.46x = 126,185.88 × 51,155.43
  4. Step 4: Simplify right side
    91,431.46x = 6,455,092,951.33
  5. Step 5: Solve for x
    x = 6,455,092,951.33/91,431.46
  6. Step 6: Final answer
    x = 70,600.35

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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.