Home / 51,579.28-77,343.40-18,294.36

Finding the Fourth Proportional to 51,579.28, 77,343.40 and 18,294.36

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Solution

The fourth proportional to 51,579.28, 77,343.40 and 18,294.36 is: 27,432.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,579.28 : 77,343.40 = 18,294.36 : x
  2. Step 2: Convert to fraction form
    51,579.28/77,343.40 = 18,294.36/x
  3. Step 3: Cross multiply
    51,579.28x = 77,343.40 × 18,294.36
  4. Step 4: Simplify right side
    51,579.28x = 1,414,948,003.22
  5. Step 5: Solve for x
    x = 1,414,948,003.22/51,579.28
  6. Step 6: Final answer
    x = 27,432.49

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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.