Home / 90,161.57-135,254.66-37,558.75

Finding the Fourth Proportional to 90,161.57, 135,254.66 and 37,558.75

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Solution

The fourth proportional to 90,161.57, 135,254.66 and 37,558.75 is: 56,343.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,161.57 : 135,254.66 = 37,558.75 : x
  2. Step 2: Convert to fraction form
    90,161.57/135,254.66 = 37,558.75/x
  3. Step 3: Cross multiply
    90,161.57x = 135,254.66 × 37,558.75
  4. Step 4: Simplify right side
    90,161.57x = 5,079,995,961.28
  5. Step 5: Solve for x
    x = 5,079,995,961.28/90,161.57
  6. Step 6: Final answer
    x = 56,343.25

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1.5x scale

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.