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Finding the Fourth Proportional to 79,009.60, 118,514.40 and 49,460.80

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Solution

The fourth proportional to 79,009.60, 118,514.40 and 49,460.80 is: 74,191.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,009.60 : 118,514.40 = 49,460.80 : x
  2. Step 2: Convert to fraction form
    79,009.60/118,514.40 = 49,460.80/x
  3. Step 3: Cross multiply
    79,009.60x = 118,514.40 × 49,460.80
  4. Step 4: Simplify right side
    79,009.60x = 5,861,817,035.52
  5. Step 5: Solve for x
    x = 5,861,817,035.52/79,009.60
  6. Step 6: Final answer
    x = 74,191.20

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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.