Home / 51,449.12-71,000.05-28,788.15

Finding the Fourth Proportional to 51,449.12, 71,000.05 and 28,788.15

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Solution

The fourth proportional to 51,449.12, 71,000.05 and 28,788.15 is: 39,727.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,449.12 : 71,000.05 = 28,788.15 : x
  2. Step 2: Convert to fraction form
    51,449.12/71,000.05 = 28,788.15/x
  3. Step 3: Cross multiply
    51,449.12x = 71,000.05 × 28,788.15
  4. Step 4: Simplify right side
    51,449.12x = 2,043,960,017.44
  5. Step 5: Solve for x
    x = 2,043,960,017.44/51,449.12
  6. Step 6: Final answer
    x = 39,727.80

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1.5x scale

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.