Home / 78,928.12-108,920.44-44,938

Finding the Fourth Proportional to 78,928.12, 108,920.44 and 44,938

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Solution

The fourth proportional to 78,928.12, 108,920.44 and 44,938 is: 62,014.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,928.12 : 108,920.44 = 44,938 : x
  2. Step 2: Convert to fraction form
    78,928.12/108,920.44 = 44,938/x
  3. Step 3: Cross multiply
    78,928.12x = 108,920.44 × 44,938
  4. Step 4: Simplify right side
    78,928.12x = 4,894,666,732.72
  5. Step 5: Solve for x
    x = 4,894,666,732.72/78,928.12
  6. Step 6: Final answer
    x = 62,014.23

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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.