Home / 76,918.80-106,153.27-42,933.90

Finding the Fourth Proportional to 76,918.80, 106,153.27 and 42,933.90

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Solution

The fourth proportional to 76,918.80, 106,153.27 and 42,933.90 is: 59,251.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,918.80 : 106,153.27 = 42,933.90 : x
  2. Step 2: Convert to fraction form
    76,918.80/106,153.27 = 42,933.90/x
  3. Step 3: Cross multiply
    76,918.80x = 106,153.27 × 42,933.90
  4. Step 4: Simplify right side
    76,918.80x = 4,557,573,878.85
  5. Step 5: Solve for x
    x = 4,557,573,878.85/76,918.80
  6. Step 6: Final answer
    x = 59,251.75

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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.