Home / 90,034.08-135,066.48-27,703.20

Finding the Fourth Proportional to 90,034.08, 135,066.48 and 27,703.20

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Solution

The fourth proportional to 90,034.08, 135,066.48 and 27,703.20 is: 41,559.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,034.08 : 135,066.48 = 27,703.20 : x
  2. Step 2: Convert to fraction form
    90,034.08/135,066.48 = 27,703.20/x
  3. Step 3: Cross multiply
    90,034.08x = 135,066.48 × 27,703.20
  4. Step 4: Simplify right side
    90,034.08x = 3,741,773,708.74
  5. Step 5: Solve for x
    x = 3,741,773,708.74/90,034.08
  6. Step 6: Final answer
    x = 41,559.53

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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.