Home / 48,491.97-66,921.49-28,360.63

Finding the Fourth Proportional to 48,491.97, 66,921.49 and 28,360.63

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Solution

The fourth proportional to 48,491.97, 66,921.49 and 28,360.63 is: 39,139.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,491.97 : 66,921.49 = 28,360.63 : x
  2. Step 2: Convert to fraction form
    48,491.97/66,921.49 = 28,360.63/x
  3. Step 3: Cross multiply
    48,491.97x = 66,921.49 × 28,360.63
  4. Step 4: Simplify right side
    48,491.97x = 1,897,935,736.04
  5. Step 5: Solve for x
    x = 1,897,935,736.04/48,491.97
  6. Step 6: Final answer
    x = 39,139.18

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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.