Home / 90,659.32-135,988.96-28,329.82

Finding the Fourth Proportional to 90,659.32, 135,988.96 and 28,329.82

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Solution

The fourth proportional to 90,659.32, 135,988.96 and 28,329.82 is: 42,494.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,659.32 : 135,988.96 = 28,329.82 : x
  2. Step 2: Convert to fraction form
    90,659.32/135,988.96 = 28,329.82/x
  3. Step 3: Cross multiply
    90,659.32x = 135,988.96 × 28,329.82
  4. Step 4: Simplify right side
    90,659.32x = 3,852,542,617.14
  5. Step 5: Solve for x
    x = 3,852,542,617.14/90,659.32
  6. Step 6: Final answer
    x = 42,494.72

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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.