Home / 82,242.32-123,372.16-26,090.40

Finding the Fourth Proportional to 82,242.32, 123,372.16 and 26,090.40

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Solution

The fourth proportional to 82,242.32, 123,372.16 and 26,090.40 is: 39,138.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,242.32 : 123,372.16 = 26,090.40 : x
  2. Step 2: Convert to fraction form
    82,242.32/123,372.16 = 26,090.40/x
  3. Step 3: Cross multiply
    82,242.32x = 123,372.16 × 26,090.40
  4. Step 4: Simplify right side
    82,242.32x = 3,218,829,003.26
  5. Step 5: Solve for x
    x = 3,218,829,003.26/82,242.32
  6. Step 6: Final answer
    x = 39,138.35

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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.