Home / 90,644.91-135,920.63-40,682.18

Finding the Fourth Proportional to 90,644.91, 135,920.63 and 40,682.18

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Solution

The fourth proportional to 90,644.91, 135,920.63 and 40,682.18 is: 61,002.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,644.91 : 135,920.63 = 40,682.18 : x
  2. Step 2: Convert to fraction form
    90,644.91/135,920.63 = 40,682.18/x
  3. Step 3: Cross multiply
    90,644.91x = 135,920.63 × 40,682.18
  4. Step 4: Simplify right side
    90,644.91x = 5,529,546,652.36
  5. Step 5: Solve for x
    x = 5,529,546,652.36/90,644.91
  6. Step 6: Final answer
    x = 61,002.29

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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.