Home / 72,634.47-100,238.14-40,369.73

Finding the Fourth Proportional to 72,634.47, 100,238.14 and 40,369.73

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Solution

The fourth proportional to 72,634.47, 100,238.14 and 40,369.73 is: 55,711.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,634.47 : 100,238.14 = 40,369.73 : x
  2. Step 2: Convert to fraction form
    72,634.47/100,238.14 = 40,369.73/x
  3. Step 3: Cross multiply
    72,634.47x = 100,238.14 × 40,369.73
  4. Step 4: Simplify right side
    72,634.47x = 4,046,586,196.77
  5. Step 5: Solve for x
    x = 4,046,586,196.77/72,634.47
  6. Step 6: Final answer
    x = 55,711.65

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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.