Home / 51,919.20-77,881.56-16,856.28

Finding the Fourth Proportional to 51,919.20, 77,881.56 and 16,856.28

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Solution

The fourth proportional to 51,919.20, 77,881.56 and 16,856.28 is: 25,285.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,919.20 : 77,881.56 = 16,856.28 : x
  2. Step 2: Convert to fraction form
    51,919.20/77,881.56 = 16,856.28/x
  3. Step 3: Cross multiply
    51,919.20x = 77,881.56 × 16,856.28
  4. Step 4: Simplify right side
    51,919.20x = 1,312,793,382.20
  5. Step 5: Solve for x
    x = 1,312,793,382.20/51,919.20
  6. Step 6: Final answer
    x = 25,285.32

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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.