Home / 58,286.56-87,448.20-20,845.72

Finding the Fourth Proportional to 58,286.56, 87,448.20 and 20,845.72

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Solution

The fourth proportional to 58,286.56, 87,448.20 and 20,845.72 is: 31,275.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,286.56 : 87,448.20 = 20,845.72 : x
  2. Step 2: Convert to fraction form
    58,286.56/87,448.20 = 20,845.72/x
  3. Step 3: Cross multiply
    58,286.56x = 87,448.20 × 20,845.72
  4. Step 4: Simplify right side
    58,286.56x = 1,822,920,691.70
  5. Step 5: Solve for x
    x = 1,822,920,691.70/58,286.56
  6. Step 6: Final answer
    x = 31,275.15

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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.