Home / 51,521.78-71,100.96-28,860.60

Finding the Fourth Proportional to 51,521.78, 71,100.96 and 28,860.60

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Solution

The fourth proportional to 51,521.78, 71,100.96 and 28,860.60 is: 39,828.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,521.78 : 71,100.96 = 28,860.60 : x
  2. Step 2: Convert to fraction form
    51,521.78/71,100.96 = 28,860.60/x
  3. Step 3: Cross multiply
    51,521.78x = 71,100.96 × 28,860.60
  4. Step 4: Simplify right side
    51,521.78x = 2,052,016,366.18
  5. Step 5: Solve for x
    x = 2,052,016,366.18/51,521.78
  6. Step 6: Final answer
    x = 39,828.13

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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.