Home / 90,791.64-136,209.32-28,462.14

Finding the Fourth Proportional to 90,791.64, 136,209.32 and 28,462.14

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Solution

The fourth proportional to 90,791.64, 136,209.32 and 28,462.14 is: 42,700.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,791.64 : 136,209.32 = 28,462.14 : x
  2. Step 2: Convert to fraction form
    90,791.64/136,209.32 = 28,462.14/x
  3. Step 3: Cross multiply
    90,791.64x = 136,209.32 × 28,462.14
  4. Step 4: Simplify right side
    90,791.64x = 3,876,808,735.14
  5. Step 5: Solve for x
    x = 3,876,808,735.14/90,791.64
  6. Step 6: Final answer
    x = 42,700.06

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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.