Home / 72,601.12-100,196.40-42,383.92

Finding the Fourth Proportional to 72,601.12, 100,196.40 and 42,383.92

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Solution

The fourth proportional to 72,601.12, 100,196.40 and 42,383.92 is: 58,493.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,601.12 : 100,196.40 = 42,383.92 : x
  2. Step 2: Convert to fraction form
    72,601.12/100,196.40 = 42,383.92/x
  3. Step 3: Cross multiply
    72,601.12x = 100,196.40 × 42,383.92
  4. Step 4: Simplify right side
    72,601.12x = 4,246,716,201.89
  5. Step 5: Solve for x
    x = 4,246,716,201.89/72,601.12
  6. Step 6: Final answer
    x = 58,493.81

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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.