Home / 75,113.12-103,661.07-43,284.05

Finding the Fourth Proportional to 75,113.12, 103,661.07 and 43,284.05

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Solution

The fourth proportional to 75,113.12, 103,661.07 and 43,284.05 is: 59,734.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,113.12 : 103,661.07 = 43,284.05 : x
  2. Step 2: Convert to fraction form
    75,113.12/103,661.07 = 43,284.05/x
  3. Step 3: Cross multiply
    75,113.12x = 103,661.07 × 43,284.05
  4. Step 4: Simplify right side
    75,113.12x = 4,486,870,936.93
  5. Step 5: Solve for x
    x = 4,486,870,936.93/75,113.12
  6. Step 6: Final answer
    x = 59,734.85

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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.