Home / 80,886.52-121,347.06-28,297.72

Finding the Fourth Proportional to 80,886.52, 121,347.06 and 28,297.72

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Solution

The fourth proportional to 80,886.52, 121,347.06 and 28,297.72 is: 42,452.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,886.52 : 121,347.06 = 28,297.72 : x
  2. Step 2: Convert to fraction form
    80,886.52/121,347.06 = 28,297.72/x
  3. Step 3: Cross multiply
    80,886.52x = 121,347.06 × 28,297.72
  4. Step 4: Simplify right side
    80,886.52x = 3,433,845,126.70
  5. Step 5: Solve for x
    x = 3,433,845,126.70/80,886.52
  6. Step 6: Final answer
    x = 42,452.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.