Home / 51,441.60-70,983.24-28,781.82

Finding the Fourth Proportional to 51,441.60, 70,983.24 and 28,781.82

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Solution

The fourth proportional to 51,441.60, 70,983.24 and 28,781.82 is: 39,715.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,441.60 : 70,983.24 = 28,781.82 : x
  2. Step 2: Convert to fraction form
    51,441.60/70,983.24 = 28,781.82/x
  3. Step 3: Cross multiply
    51,441.60x = 70,983.24 × 28,781.82
  4. Step 4: Simplify right side
    51,441.60x = 2,043,026,836.70
  5. Step 5: Solve for x
    x = 2,043,026,836.70/51,441.60
  6. Step 6: Final answer
    x = 39,715.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.