Home / 40,784.68-61,125.18-18,610.12

Finding the Fourth Proportional to 40,784.68, 61,125.18 and 18,610.12

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Solution

The fourth proportional to 40,784.68, 61,125.18 and 18,610.12 is: 27,891.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,784.68 : 61,125.18 = 18,610.12 : x
  2. Step 2: Convert to fraction form
    40,784.68/61,125.18 = 18,610.12/x
  3. Step 3: Cross multiply
    40,784.68x = 61,125.18 × 18,610.12
  4. Step 4: Simplify right side
    40,784.68x = 1,137,546,934.82
  5. Step 5: Solve for x
    x = 1,137,546,934.82/40,784.68
  6. Step 6: Final answer
    x = 27,891.53

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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.