Home / 72,611.08-108,897.18-20,023.45

Finding the Fourth Proportional to 72,611.08, 108,897.18 and 20,023.45

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Solution

The fourth proportional to 72,611.08, 108,897.18 and 20,023.45 is: 30,029.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,611.08 : 108,897.18 = 20,023.45 : x
  2. Step 2: Convert to fraction form
    72,611.08/108,897.18 = 20,023.45/x
  3. Step 3: Cross multiply
    72,611.08x = 108,897.18 × 20,023.45
  4. Step 4: Simplify right side
    72,611.08x = 2,180,497,238.87
  5. Step 5: Solve for x
    x = 2,180,497,238.87/72,611.08
  6. Step 6: Final answer
    x = 30,029.81

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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.