Home / 74,689.28-103,001.97-54,514.21

Finding the Fourth Proportional to 74,689.28, 103,001.97 and 54,514.21

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Solution

The fourth proportional to 74,689.28, 103,001.97 and 54,514.21 is: 75,179.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,689.28 : 103,001.97 = 54,514.21 : x
  2. Step 2: Convert to fraction form
    74,689.28/103,001.97 = 54,514.21/x
  3. Step 3: Cross multiply
    74,689.28x = 103,001.97 × 54,514.21
  4. Step 4: Simplify right side
    74,689.28x = 5,615,070,507.98
  5. Step 5: Solve for x
    x = 5,615,070,507.98/74,689.28
  6. Step 6: Final answer
    x = 75,179.07

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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.