Home / 79,212.97-109,312.17-43,402.19

Finding the Fourth Proportional to 79,212.97, 109,312.17 and 43,402.19

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Solution

The fourth proportional to 79,212.97, 109,312.17 and 43,402.19 is: 59,894.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,212.97 : 109,312.17 = 43,402.19 : x
  2. Step 2: Convert to fraction form
    79,212.97/109,312.17 = 43,402.19/x
  3. Step 3: Cross multiply
    79,212.97x = 109,312.17 × 43,402.19
  4. Step 4: Simplify right side
    79,212.97x = 4,744,387,571.65
  5. Step 5: Solve for x
    x = 4,744,387,571.65/79,212.97
  6. Step 6: Final answer
    x = 59,894.08

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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.