Home / 82,495.16-123,742.74-20,165.56

Finding the Fourth Proportional to 82,495.16, 123,742.74 and 20,165.56

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Solution

The fourth proportional to 82,495.16, 123,742.74 and 20,165.56 is: 30,248.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,495.16 : 123,742.74 = 20,165.56 : x
  2. Step 2: Convert to fraction form
    82,495.16/123,742.74 = 20,165.56/x
  3. Step 3: Cross multiply
    82,495.16x = 123,742.74 × 20,165.56
  4. Step 4: Simplify right side
    82,495.16x = 2,495,341,648.03
  5. Step 5: Solve for x
    x = 2,495,341,648.03/82,495.16
  6. Step 6: Final answer
    x = 30,248.34

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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.