Home / 91,511.32-126,287.76-51,224.08

Finding the Fourth Proportional to 91,511.32, 126,287.76 and 51,224.08

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Solution

The fourth proportional to 91,511.32, 126,287.76 and 51,224.08 is: 70,690.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,511.32 : 126,287.76 = 51,224.08 : x
  2. Step 2: Convert to fraction form
    91,511.32/126,287.76 = 51,224.08/x
  3. Step 3: Cross multiply
    91,511.32x = 126,287.76 × 51,224.08
  4. Step 4: Simplify right side
    91,511.32x = 6,468,974,321.26
  5. Step 5: Solve for x
    x = 6,468,974,321.26/91,511.32
  6. Step 6: Final answer
    x = 70,690.43

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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.