Home / 72,635.06-100,236.02-40,369.52

Finding the Fourth Proportional to 72,635.06, 100,236.02 and 40,369.52

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Solution

The fourth proportional to 72,635.06, 100,236.02 and 40,369.52 is: 55,709.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,635.06 : 100,236.02 = 40,369.52 : x
  2. Step 2: Convert to fraction form
    72,635.06/100,236.02 = 40,369.52/x
  3. Step 3: Cross multiply
    72,635.06x = 100,236.02 × 40,369.52
  4. Step 4: Simplify right side
    72,635.06x = 4,046,480,062.85
  5. Step 5: Solve for x
    x = 4,046,480,062.85/72,635.06
  6. Step 6: Final answer
    x = 55,709.73

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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.