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Finding the Fourth Proportional to 79,671.60, 109,945.08 and 43,860.24

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Solution

The fourth proportional to 79,671.60, 109,945.08 and 43,860.24 is: 60,526.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,671.60 : 109,945.08 = 43,860.24 : x
  2. Step 2: Convert to fraction form
    79,671.60/109,945.08 = 43,860.24/x
  3. Step 3: Cross multiply
    79,671.60x = 109,945.08 × 43,860.24
  4. Step 4: Simplify right side
    79,671.60x = 4,822,217,595.62
  5. Step 5: Solve for x
    x = 4,822,217,595.62/79,671.60
  6. Step 6: Final answer
    x = 60,526.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.