Home / 75,992.32-113,988.46-20,588.32

Finding the Fourth Proportional to 75,992.32, 113,988.46 and 20,588.32

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Solution

The fourth proportional to 75,992.32, 113,988.46 and 20,588.32 is: 30,882.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,992.32 : 113,988.46 = 20,588.32 : x
  2. Step 2: Convert to fraction form
    75,992.32/113,988.46 = 20,588.32/x
  3. Step 3: Cross multiply
    75,992.32x = 113,988.46 × 20,588.32
  4. Step 4: Simplify right side
    75,992.32x = 2,346,830,890.79
  5. Step 5: Solve for x
    x = 2,346,830,890.79/75,992.32
  6. Step 6: Final answer
    x = 30,882.47

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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.