Home / 75,121.14-103,667.27-43,289.22

Finding the Fourth Proportional to 75,121.14, 103,667.27 and 43,289.22

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Solution

The fourth proportional to 75,121.14, 103,667.27 and 43,289.22 is: 59,739.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,121.14 : 103,667.27 = 43,289.22 : x
  2. Step 2: Convert to fraction form
    75,121.14/103,667.27 = 43,289.22/x
  3. Step 3: Cross multiply
    75,121.14x = 103,667.27 × 43,289.22
  4. Step 4: Simplify right side
    75,121.14x = 4,487,675,041.38
  5. Step 5: Solve for x
    x = 4,487,675,041.38/75,121.14
  6. Step 6: Final answer
    x = 59,739.18

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1.5x scale

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.