Home / 51,374.72-77,084.36-18,118.56

Finding the Fourth Proportional to 51,374.72, 77,084.36 and 18,118.56

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Solution

The fourth proportional to 51,374.72, 77,084.36 and 18,118.56 is: 27,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,374.72 : 77,084.36 = 18,118.56 : x
  2. Step 2: Convert to fraction form
    51,374.72/77,084.36 = 18,118.56/x
  3. Step 3: Cross multiply
    51,374.72x = 77,084.36 × 18,118.56
  4. Step 4: Simplify right side
    51,374.72x = 1,396,657,601.72
  5. Step 5: Solve for x
    x = 1,396,657,601.72/51,374.72
  6. Step 6: Final answer
    x = 27,185.70

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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.