Home / 51,781.83-77,648.21-18,036.08

Finding the Fourth Proportional to 51,781.83, 77,648.21 and 18,036.08

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Solution

The fourth proportional to 51,781.83, 77,648.21 and 18,036.08 is: 27,045.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,781.83 : 77,648.21 = 18,036.08 : x
  2. Step 2: Convert to fraction form
    51,781.83/77,648.21 = 18,036.08/x
  3. Step 3: Cross multiply
    51,781.83x = 77,648.21 × 18,036.08
  4. Step 4: Simplify right side
    51,781.83x = 1,400,468,849.00
  5. Step 5: Solve for x
    x = 1,400,468,849.00/51,781.83
  6. Step 6: Final answer
    x = 27,045.56

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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.