Home / 57,318.40-85,971.12-15,760

Finding the Fourth Proportional to 57,318.40, 85,971.12 and 15,760

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Solution

The fourth proportional to 57,318.40, 85,971.12 and 15,760 is: 23,638.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,318.40 : 85,971.12 = 15,760 : x
  2. Step 2: Convert to fraction form
    57,318.40/85,971.12 = 15,760/x
  3. Step 3: Cross multiply
    57,318.40x = 85,971.12 × 15,760
  4. Step 4: Simplify right side
    57,318.40x = 1,354,904,851.20
  5. Step 5: Solve for x
    x = 1,354,904,851.20/57,318.40
  6. Step 6: Final answer
    x = 23,638.22

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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.