Home / 72,729.25-100,366.97-40,897.87

Finding the Fourth Proportional to 72,729.25, 100,366.97 and 40,897.87

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Solution

The fourth proportional to 72,729.25, 100,366.97 and 40,897.87 is: 56,439.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,729.25 : 100,366.97 = 40,897.87 : x
  2. Step 2: Convert to fraction form
    72,729.25/100,366.97 = 40,897.87/x
  3. Step 3: Cross multiply
    72,729.25x = 100,366.97 × 40,897.87
  4. Step 4: Simplify right side
    72,729.25x = 4,104,794,585.03
  5. Step 5: Solve for x
    x = 4,104,794,585.03/72,729.25
  6. Step 6: Final answer
    x = 56,439.39

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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.