Home / 52,229.88-72,078.09-28,356.55

Finding the Fourth Proportional to 52,229.88, 72,078.09 and 28,356.55

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Solution

The fourth proportional to 52,229.88, 72,078.09 and 28,356.55 is: 39,132.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,229.88 : 72,078.09 = 28,356.55 : x
  2. Step 2: Convert to fraction form
    52,229.88/72,078.09 = 28,356.55/x
  3. Step 3: Cross multiply
    52,229.88x = 72,078.09 × 28,356.55
  4. Step 4: Simplify right side
    52,229.88x = 2,043,885,676.46
  5. Step 5: Solve for x
    x = 2,043,885,676.46/52,229.88
  6. Step 6: Final answer
    x = 39,132.50

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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.