Home / 71,217.12-98,275.62-38,945.34

Finding the Fourth Proportional to 71,217.12, 98,275.62 and 38,945.34

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Solution

The fourth proportional to 71,217.12, 98,275.62 and 38,945.34 is: 53,742.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,217.12 : 98,275.62 = 38,945.34 : x
  2. Step 2: Convert to fraction form
    71,217.12/98,275.62 = 38,945.34/x
  3. Step 3: Cross multiply
    71,217.12x = 98,275.62 × 38,945.34
  4. Step 4: Simplify right side
    71,217.12x = 3,827,377,434.61
  5. Step 5: Solve for x
    x = 3,827,377,434.61/71,217.12
  6. Step 6: Final answer
    x = 53,742.38

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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.