Home / 90,035.37-135,089.43-40,081.35

Finding the Fourth Proportional to 90,035.37, 135,089.43 and 40,081.35

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Solution

The fourth proportional to 90,035.37, 135,089.43 and 40,081.35 is: 60,138.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,035.37 : 135,089.43 = 40,081.35 : x
  2. Step 2: Convert to fraction form
    90,035.37/135,089.43 = 40,081.35/x
  3. Step 3: Cross multiply
    90,035.37x = 135,089.43 × 40,081.35
  4. Step 4: Simplify right side
    90,035.37x = 5,414,566,725.13
  5. Step 5: Solve for x
    x = 5,414,566,725.13/90,035.37
  6. Step 6: Final answer
    x = 60,138.22

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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.