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Finding the Fourth Proportional to 79,220.08, 118,830.12 and 19,248.22

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Solution

The fourth proportional to 79,220.08, 118,830.12 and 19,248.22 is: 28,872.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,220.08 : 118,830.12 = 19,248.22 : x
  2. Step 2: Convert to fraction form
    79,220.08/118,830.12 = 19,248.22/x
  3. Step 3: Cross multiply
    79,220.08x = 118,830.12 × 19,248.22
  4. Step 4: Simplify right side
    79,220.08x = 2,287,268,292.39
  5. Step 5: Solve for x
    x = 2,287,268,292.39/79,220.08
  6. Step 6: Final answer
    x = 28,872.33

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Similar ratio
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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.