Home / 51,645.52-71,268.20-28,981.68

Finding the Fourth Proportional to 51,645.52, 71,268.20 and 28,981.68

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Solution

The fourth proportional to 51,645.52, 71,268.20 and 28,981.68 is: 39,993.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,645.52 : 71,268.20 = 28,981.68 : x
  2. Step 2: Convert to fraction form
    51,645.52/71,268.20 = 28,981.68/x
  3. Step 3: Cross multiply
    51,645.52x = 71,268.20 × 28,981.68
  4. Step 4: Simplify right side
    51,645.52x = 2,065,472,166.58
  5. Step 5: Solve for x
    x = 2,065,472,166.58/51,645.52
  6. Step 6: Final answer
    x = 39,993.25

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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.