Home / 75,746.13-113,619.19-20,342.13

Finding the Fourth Proportional to 75,746.13, 113,619.19 and 20,342.13

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Solution

The fourth proportional to 75,746.13, 113,619.19 and 20,342.13 is: 30,513.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,746.13 : 113,619.19 = 20,342.13 : x
  2. Step 2: Convert to fraction form
    75,746.13/113,619.19 = 20,342.13/x
  3. Step 3: Cross multiply
    75,746.13x = 113,619.19 × 20,342.13
  4. Step 4: Simplify right side
    75,746.13x = 2,311,256,333.47
  5. Step 5: Solve for x
    x = 2,311,256,333.47/75,746.13
  6. Step 6: Final answer
    x = 30,513.19

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.