Home / 75,113.62-103,661.76-43,284.55

Finding the Fourth Proportional to 75,113.62, 103,661.76 and 43,284.55

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Solution

The fourth proportional to 75,113.62, 103,661.76 and 43,284.55 is: 59,735.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,113.62 : 103,661.76 = 43,284.55 : x
  2. Step 2: Convert to fraction form
    75,113.62/103,661.76 = 43,284.55/x
  3. Step 3: Cross multiply
    75,113.62x = 103,661.76 × 43,284.55
  4. Step 4: Simplify right side
    75,113.62x = 4,486,952,633.81
  5. Step 5: Solve for x
    x = 4,486,952,633.81/75,113.62
  6. Step 6: Final answer
    x = 59,735.54

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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.