Home / 72,480.10-108,730.95-25,729.06

Finding the Fourth Proportional to 72,480.10, 108,730.95 and 25,729.06

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Solution

The fourth proportional to 72,480.10, 108,730.95 and 25,729.06 is: 38,597.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,480.10 : 108,730.95 = 25,729.06 : x
  2. Step 2: Convert to fraction form
    72,480.10/108,730.95 = 25,729.06/x
  3. Step 3: Cross multiply
    72,480.10x = 108,730.95 × 25,729.06
  4. Step 4: Simplify right side
    72,480.10x = 2,797,545,136.41
  5. Step 5: Solve for x
    x = 2,797,545,136.41/72,480.10
  6. Step 6: Final answer
    x = 38,597.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.