Home / 101,855.25-140,557.62-56,531.91

Finding the Fourth Proportional to 101,855.25, 140,557.62 and 56,531.91

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Solution

The fourth proportional to 101,855.25, 140,557.62 and 56,531.91 is: 78,012.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,855.25 : 140,557.62 = 56,531.91 : x
  2. Step 2: Convert to fraction form
    101,855.25/140,557.62 = 56,531.91/x
  3. Step 3: Cross multiply
    101,855.25x = 140,557.62 × 56,531.91
  4. Step 4: Simplify right side
    101,855.25x = 7,945,990,723.65
  5. Step 5: Solve for x
    x = 7,945,990,723.65/101,855.25
  6. Step 6: Final answer
    x = 78,012.58

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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.