Home / 79,113.81-109,177.22-43,306.11

Finding the Fourth Proportional to 79,113.81, 109,177.22 and 43,306.11

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Solution

The fourth proportional to 79,113.81, 109,177.22 and 43,306.11 is: 59,762.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,113.81 : 109,177.22 = 43,306.11 : x
  2. Step 2: Convert to fraction form
    79,113.81/109,177.22 = 43,306.11/x
  3. Step 3: Cross multiply
    79,113.81x = 109,177.22 × 43,306.11
  4. Step 4: Simplify right side
    79,113.81x = 4,728,039,936.40
  5. Step 5: Solve for x
    x = 4,728,039,936.40/79,113.81
  6. Step 6: Final answer
    x = 59,762.51

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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.