Home / 79,200.18-118,789.11-20,032.20

Finding the Fourth Proportional to 79,200.18, 118,789.11 and 20,032.20

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Solution

The fourth proportional to 79,200.18, 118,789.11 and 20,032.20 is: 30,045.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,200.18 : 118,789.11 = 20,032.20 : x
  2. Step 2: Convert to fraction form
    79,200.18/118,789.11 = 20,032.20/x
  3. Step 3: Cross multiply
    79,200.18x = 118,789.11 × 20,032.20
  4. Step 4: Simplify right side
    79,200.18x = 2,379,607,209.34
  5. Step 5: Solve for x
    x = 2,379,607,209.34/79,200.18
  6. Step 6: Final answer
    x = 30,045.48

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1.5x scale

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.