Home / 78,820.41-108,773.75-43,011.93

Finding the Fourth Proportional to 78,820.41, 108,773.75 and 43,011.93

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Solution

The fourth proportional to 78,820.41, 108,773.75 and 43,011.93 is: 59,357.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,820.41 : 108,773.75 = 43,011.93 : x
  2. Step 2: Convert to fraction form
    78,820.41/108,773.75 = 43,011.93/x
  3. Step 3: Cross multiply
    78,820.41x = 108,773.75 × 43,011.93
  4. Step 4: Simplify right side
    78,820.41x = 4,678,568,920.84
  5. Step 5: Solve for x
    x = 4,678,568,920.84/78,820.41
  6. Step 6: Final answer
    x = 59,357.33

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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.