Home / 91,634.39-126,284.21-71,459.31

Finding the Fourth Proportional to 91,634.39, 126,284.21 and 71,459.31

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Solution

The fourth proportional to 91,634.39, 126,284.21 and 71,459.31 is: 98,480.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,634.39 : 126,284.21 = 71,459.31 : x
  2. Step 2: Convert to fraction form
    91,634.39/126,284.21 = 71,459.31/x
  3. Step 3: Cross multiply
    91,634.39x = 126,284.21 × 71,459.31
  4. Step 4: Simplify right side
    91,634.39x = 9,024,183,296.70
  5. Step 5: Solve for x
    x = 9,024,183,296.70/91,634.39
  6. Step 6: Final answer
    x = 98,480.31

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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.