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Finding the Fourth Proportional to 79,155.60, 118,906.20 and 55,827.60

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Solution

The fourth proportional to 79,155.60, 118,906.20 and 55,827.60 is: 83,863.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,155.60 : 118,906.20 = 55,827.60 : x
  2. Step 2: Convert to fraction form
    79,155.60/118,906.20 = 55,827.60/x
  3. Step 3: Cross multiply
    79,155.60x = 118,906.20 × 55,827.60
  4. Step 4: Simplify right side
    79,155.60x = 6,638,247,771.12
  5. Step 5: Solve for x
    x = 6,638,247,771.12/79,155.60
  6. Step 6: Final answer
    x = 83,863.27

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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.