Home / 72,305.06-108,454.39-19,714.55

Finding the Fourth Proportional to 72,305.06, 108,454.39 and 19,714.55

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Solution

The fourth proportional to 72,305.06, 108,454.39 and 19,714.55 is: 29,570.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,305.06 : 108,454.39 = 19,714.55 : x
  2. Step 2: Convert to fraction form
    72,305.06/108,454.39 = 19,714.55/x
  3. Step 3: Cross multiply
    72,305.06x = 108,454.39 × 19,714.55
  4. Step 4: Simplify right side
    72,305.06x = 2,138,128,902.82
  5. Step 5: Solve for x
    x = 2,138,128,902.82/72,305.06
  6. Step 6: Final answer
    x = 29,570.95

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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.