Home / 51,387.56-77,034.60-19,777.44

Finding the Fourth Proportional to 51,387.56, 77,034.60 and 19,777.44

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Solution

The fourth proportional to 51,387.56, 77,034.60 and 19,777.44 is: 29,648.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,387.56 : 77,034.60 = 19,777.44 : x
  2. Step 2: Convert to fraction form
    51,387.56/77,034.60 = 19,777.44/x
  3. Step 3: Cross multiply
    51,387.56x = 77,034.60 × 19,777.44
  4. Step 4: Simplify right side
    51,387.56x = 1,523,547,179.42
  5. Step 5: Solve for x
    x = 1,523,547,179.42/51,387.56
  6. Step 6: Final answer
    x = 29,648.17

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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.