Home / 90,030.08-135,060.48-27,699.20

Finding the Fourth Proportional to 90,030.08, 135,060.48 and 27,699.20

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Solution

The fourth proportional to 90,030.08, 135,060.48 and 27,699.20 is: 41,553.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,030.08 : 135,060.48 = 27,699.20 : x
  2. Step 2: Convert to fraction form
    90,030.08/135,060.48 = 27,699.20/x
  3. Step 3: Cross multiply
    90,030.08x = 135,060.48 × 27,699.20
  4. Step 4: Simplify right side
    90,030.08x = 3,741,067,247.62
  5. Step 5: Solve for x
    x = 3,741,067,247.62/90,030.08
  6. Step 6: Final answer
    x = 41,553.53

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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.