Home / 78,974.59-108,981.66-43,165.84

Finding the Fourth Proportional to 78,974.59, 108,981.66 and 43,165.84

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Solution

The fourth proportional to 78,974.59, 108,981.66 and 43,165.84 is: 59,567.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,974.59 : 108,981.66 = 43,165.84 : x
  2. Step 2: Convert to fraction form
    78,974.59/108,981.66 = 43,165.84/x
  3. Step 3: Cross multiply
    78,974.59x = 108,981.66 × 43,165.84
  4. Step 4: Simplify right side
    78,974.59x = 4,704,284,898.49
  5. Step 5: Solve for x
    x = 4,704,284,898.49/78,974.59
  6. Step 6: Final answer
    x = 59,567.07

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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.