Home / 51,396.12-70,910.64-28,731.92

Finding the Fourth Proportional to 51,396.12, 70,910.64 and 28,731.92

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Solution

The fourth proportional to 51,396.12, 70,910.64 and 28,731.92 is: 39,641.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,396.12 : 70,910.64 = 28,731.92 : x
  2. Step 2: Convert to fraction form
    51,396.12/70,910.64 = 28,731.92/x
  3. Step 3: Cross multiply
    51,396.12x = 70,910.64 × 28,731.92
  4. Step 4: Simplify right side
    51,396.12x = 2,037,398,481.08
  5. Step 5: Solve for x
    x = 2,037,398,481.08/51,396.12
  6. Step 6: Final answer
    x = 39,641.10

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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.