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Finding the Fourth Proportional to 79,101.60, 118,911.60 and 55,888.80

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Solution

The fourth proportional to 79,101.60, 118,911.60 and 55,888.80 is: 84,016.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,101.60 : 118,911.60 = 55,888.80 : x
  2. Step 2: Convert to fraction form
    79,101.60/118,911.60 = 55,888.80/x
  3. Step 3: Cross multiply
    79,101.60x = 118,911.60 × 55,888.80
  4. Step 4: Simplify right side
    79,101.60x = 6,645,826,630.08
  5. Step 5: Solve for x
    x = 6,645,826,630.08/79,101.60
  6. Step 6: Final answer
    x = 84,016.34

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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.