Home / 75,010.40-103,514.39-42,744.10

Finding the Fourth Proportional to 75,010.40, 103,514.39 and 42,744.10

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Solution

The fourth proportional to 75,010.40, 103,514.39 and 42,744.10 is: 58,986.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,010.40 : 103,514.39 = 42,744.10 : x
  2. Step 2: Convert to fraction form
    75,010.40/103,514.39 = 42,744.10/x
  3. Step 3: Cross multiply
    75,010.40x = 103,514.39 × 42,744.10
  4. Step 4: Simplify right side
    75,010.40x = 4,424,629,437.60
  5. Step 5: Solve for x
    x = 4,424,629,437.60/75,010.40
  6. Step 6: Final answer
    x = 58,986.88

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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.