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Finding the Fourth Proportional to 79,208.95, 109,308.32 and 43,400.32

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Solution

The fourth proportional to 79,208.95, 109,308.32 and 43,400.32 is: 59,892.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,208.95 : 109,308.32 = 43,400.32 : x
  2. Step 2: Convert to fraction form
    79,208.95/109,308.32 = 43,400.32/x
  3. Step 3: Cross multiply
    79,208.95x = 109,308.32 × 43,400.32
  4. Step 4: Simplify right side
    79,208.95x = 4,744,015,628.62
  5. Step 5: Solve for x
    x = 4,744,015,628.62/79,208.95
  6. Step 6: Final answer
    x = 59,892.42

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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.