Home / 71,215.30-98,274.14-38,949.40

Finding the Fourth Proportional to 71,215.30, 98,274.14 and 38,949.40

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Solution

The fourth proportional to 71,215.30, 98,274.14 and 38,949.40 is: 53,748.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,215.30 : 98,274.14 = 38,949.40 : x
  2. Step 2: Convert to fraction form
    71,215.30/98,274.14 = 38,949.40/x
  3. Step 3: Cross multiply
    71,215.30x = 98,274.14 × 38,949.40
  4. Step 4: Simplify right side
    71,215.30x = 3,827,718,788.52
  5. Step 5: Solve for x
    x = 3,827,718,788.52/71,215.30
  6. Step 6: Final answer
    x = 53,748.55

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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.