Home / 91,968.78-126,920.67-51,682.42

Finding the Fourth Proportional to 91,968.78, 126,920.67 and 51,682.42

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Solution

The fourth proportional to 91,968.78, 126,920.67 and 51,682.42 is: 71,323.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,968.78 : 126,920.67 = 51,682.42 : x
  2. Step 2: Convert to fraction form
    91,968.78/126,920.67 = 51,682.42/x
  3. Step 3: Cross multiply
    91,968.78x = 126,920.67 × 51,682.42
  4. Step 4: Simplify right side
    91,968.78x = 6,559,567,373.62
  5. Step 5: Solve for x
    x = 6,559,567,373.62/91,968.78
  6. Step 6: Final answer
    x = 71,323.85

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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.