Home / 91,956.04-137,926.78-28,785.80

Finding the Fourth Proportional to 91,956.04, 137,926.78 and 28,785.80

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Solution

The fourth proportional to 91,956.04, 137,926.78 and 28,785.80 is: 43,176.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,956.04 : 137,926.78 = 28,785.80 : x
  2. Step 2: Convert to fraction form
    91,956.04/137,926.78 = 28,785.80/x
  3. Step 3: Cross multiply
    91,956.04x = 137,926.78 × 28,785.80
  4. Step 4: Simplify right side
    91,956.04x = 3,970,332,703.72
  5. Step 5: Solve for x
    x = 3,970,332,703.72/91,956.04
  6. Step 6: Final answer
    x = 43,176.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.