Home / 51,645.94-71,253.54-28,981.80

Finding the Fourth Proportional to 51,645.94, 71,253.54 and 28,981.80

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Solution

The fourth proportional to 51,645.94, 71,253.54 and 28,981.80 is: 39,984.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,645.94 : 71,253.54 = 28,981.80 : x
  2. Step 2: Convert to fraction form
    51,645.94/71,253.54 = 28,981.80/x
  3. Step 3: Cross multiply
    51,645.94x = 71,253.54 × 28,981.80
  4. Step 4: Simplify right side
    51,645.94x = 2,065,055,845.57
  5. Step 5: Solve for x
    x = 2,065,055,845.57/51,645.94
  6. Step 6: Final answer
    x = 39,984.87

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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.