Home / 90,129.22-135,213.23-26,954.35

Finding the Fourth Proportional to 90,129.22, 135,213.23 and 26,954.35

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Solution

The fourth proportional to 90,129.22, 135,213.23 and 26,954.35 is: 40,437.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,129.22 : 135,213.23 = 26,954.35 : x
  2. Step 2: Convert to fraction form
    90,129.22/135,213.23 = 26,954.35/x
  3. Step 3: Cross multiply
    90,129.22x = 135,213.23 × 26,954.35
  4. Step 4: Simplify right side
    90,129.22x = 3,644,584,726.05
  5. Step 5: Solve for x
    x = 3,644,584,726.05/90,129.22
  6. Step 6: Final answer
    x = 40,437.33

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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.