Home / 67,712.12-101,123.54-54,405.33

Finding the Fourth Proportional to 67,712.12, 101,123.54 and 54,405.33

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Solution

The fourth proportional to 67,712.12, 101,123.54 and 54,405.33 is: 81,250.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,712.12 : 101,123.54 = 54,405.33 : x
  2. Step 2: Convert to fraction form
    67,712.12/101,123.54 = 54,405.33/x
  3. Step 3: Cross multiply
    67,712.12x = 101,123.54 × 54,405.33
  4. Step 4: Simplify right side
    67,712.12x = 5,501,659,292.44
  5. Step 5: Solve for x
    x = 5,501,659,292.44/67,712.12
  6. Step 6: Final answer
    x = 81,250.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.