Home / 79,122.92-109,186.34-43,312.04

Finding the Fourth Proportional to 79,122.92, 109,186.34 and 43,312.04

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Solution

The fourth proportional to 79,122.92, 109,186.34 and 43,312.04 is: 59,768.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,122.92 : 109,186.34 = 43,312.04 : x
  2. Step 2: Convert to fraction form
    79,122.92/109,186.34 = 43,312.04/x
  3. Step 3: Cross multiply
    79,122.92x = 109,186.34 × 43,312.04
  4. Step 4: Simplify right side
    79,122.92x = 4,729,083,125.53
  5. Step 5: Solve for x
    x = 4,729,083,125.53/79,122.92
  6. Step 6: Final answer
    x = 59,768.81

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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.