Home / 51,981.54-71,734.30-28,108.20

Finding the Fourth Proportional to 51,981.54, 71,734.30 and 28,108.20

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Solution

The fourth proportional to 51,981.54, 71,734.30 and 28,108.20 is: 38,789.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,981.54 : 71,734.30 = 28,108.20 : x
  2. Step 2: Convert to fraction form
    51,981.54/71,734.30 = 28,108.20/x
  3. Step 3: Cross multiply
    51,981.54x = 71,734.30 × 28,108.20
  4. Step 4: Simplify right side
    51,981.54x = 2,016,322,051.26
  5. Step 5: Solve for x
    x = 2,016,322,051.26/51,981.54
  6. Step 6: Final answer
    x = 38,789.19

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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.