Home / 91,968.26-126,919.94-51,681.92

Finding the Fourth Proportional to 91,968.26, 126,919.94 and 51,681.92

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Solution

The fourth proportional to 91,968.26, 126,919.94 and 51,681.92 is: 71,323.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,968.26 : 126,919.94 = 51,681.92 : x
  2. Step 2: Convert to fraction form
    91,968.26/126,919.94 = 51,681.92/x
  3. Step 3: Cross multiply
    91,968.26x = 126,919.94 × 51,681.92
  4. Step 4: Simplify right side
    91,968.26x = 6,559,465,292.48
  5. Step 5: Solve for x
    x = 6,559,465,292.48/91,968.26
  6. Step 6: Final answer
    x = 71,323.15

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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.