Home / 57,345.12-86,015.88-15,791.76

Finding the Fourth Proportional to 57,345.12, 86,015.88 and 15,791.76

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Solution

The fourth proportional to 57,345.12, 86,015.88 and 15,791.76 is: 23,687.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,345.12 : 86,015.88 = 15,791.76 : x
  2. Step 2: Convert to fraction form
    57,345.12/86,015.88 = 15,791.76/x
  3. Step 3: Cross multiply
    57,345.12x = 86,015.88 × 15,791.76
  4. Step 4: Simplify right side
    57,345.12x = 1,358,342,133.15
  5. Step 5: Solve for x
    x = 1,358,342,133.15/57,345.12
  6. Step 6: Final answer
    x = 23,687.14

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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.