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Finding the Fourth Proportional to 72,497.48, 100,046.30 and 40,236.95

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Solution

The fourth proportional to 72,497.48, 100,046.30 and 40,236.95 is: 55,526.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,497.48 : 100,046.30 = 40,236.95 : x
  2. Step 2: Convert to fraction form
    72,497.48/100,046.30 = 40,236.95/x
  3. Step 3: Cross multiply
    72,497.48x = 100,046.30 × 40,236.95
  4. Step 4: Simplify right side
    72,497.48x = 4,025,557,269.37
  5. Step 5: Solve for x
    x = 4,025,557,269.37/72,497.48
  6. Step 6: Final answer
    x = 55,526.86

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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.