Home / 40,759.93-61,149.48-12,678.58

Finding the Fourth Proportional to 40,759.93, 61,149.48 and 12,678.58

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Solution

The fourth proportional to 40,759.93, 61,149.48 and 12,678.58 is: 19,020.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,759.93 : 61,149.48 = 12,678.58 : x
  2. Step 2: Convert to fraction form
    40,759.93/61,149.48 = 12,678.58/x
  3. Step 3: Cross multiply
    40,759.93x = 61,149.48 × 12,678.58
  4. Step 4: Simplify right side
    40,759.93x = 775,288,574.14
  5. Step 5: Solve for x
    x = 775,288,574.14/40,759.93
  6. Step 6: Final answer
    x = 19,020.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.