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Finding the Fourth Proportional to 79,130.14, 118,613.18 and 49,479.90

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Solution

The fourth proportional to 79,130.14, 118,613.18 and 49,479.90 is: 74,168.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,130.14 : 118,613.18 = 49,479.90 : x
  2. Step 2: Convert to fraction form
    79,130.14/118,613.18 = 49,479.90/x
  3. Step 3: Cross multiply
    79,130.14x = 118,613.18 × 49,479.90
  4. Step 4: Simplify right side
    79,130.14x = 5,868,968,285.08
  5. Step 5: Solve for x
    x = 5,868,968,285.08/79,130.14
  6. Step 6: Final answer
    x = 74,168.56

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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.