Home / 91,967.28-126,918.59-51,680.91

Finding the Fourth Proportional to 91,967.28, 126,918.59 and 51,680.91

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Solution

The fourth proportional to 91,967.28, 126,918.59 and 51,680.91 is: 71,321.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,967.28 : 126,918.59 = 51,680.91 : x
  2. Step 2: Convert to fraction form
    91,967.28/126,918.59 = 51,680.91/x
  3. Step 3: Cross multiply
    91,967.28x = 126,918.59 × 51,680.91
  4. Step 4: Simplify right side
    91,967.28x = 6,559,268,227.12
  5. Step 5: Solve for x
    x = 6,559,268,227.12/91,967.28
  6. Step 6: Final answer
    x = 71,321.76

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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.