Home / 68,488.36-94,338.16-48,309.78

Finding the Fourth Proportional to 68,488.36, 94,338.16 and 48,309.78

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Solution

The fourth proportional to 68,488.36, 94,338.16 and 48,309.78 is: 66,543.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,488.36 : 94,338.16 = 48,309.78 : x
  2. Step 2: Convert to fraction form
    68,488.36/94,338.16 = 48,309.78/x
  3. Step 3: Cross multiply
    68,488.36x = 94,338.16 × 48,309.78
  4. Step 4: Simplify right side
    68,488.36x = 4,557,455,755.20
  5. Step 5: Solve for x
    x = 4,557,455,755.20/68,488.36
  6. Step 6: Final answer
    x = 66,543.51

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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.