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Finding the Fourth Proportional to 51,959.55, 77,947.52 and 16,891

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Solution

The fourth proportional to 51,959.55, 77,947.52 and 16,891 is: 25,339.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,959.55 : 77,947.52 = 16,891 : x
  2. Step 2: Convert to fraction form
    51,959.55/77,947.52 = 16,891/x
  3. Step 3: Cross multiply
    51,959.55x = 77,947.52 × 16,891
  4. Step 4: Simplify right side
    51,959.55x = 1,316,611,560.32
  5. Step 5: Solve for x
    x = 1,316,611,560.32/51,959.55
  6. Step 6: Final answer
    x = 25,339.16

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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.