Home / 66,118.55-99,091.19-30,575.36

Finding the Fourth Proportional to 66,118.55, 99,091.19 and 30,575.36

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Solution

The fourth proportional to 66,118.55, 99,091.19 and 30,575.36 is: 45,822.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,118.55 : 99,091.19 = 30,575.36 : x
  2. Step 2: Convert to fraction form
    66,118.55/99,091.19 = 30,575.36/x
  3. Step 3: Cross multiply
    66,118.55x = 99,091.19 × 30,575.36
  4. Step 4: Simplify right side
    66,118.55x = 3,029,749,131.24
  5. Step 5: Solve for x
    x = 3,029,749,131.24/66,118.55
  6. Step 6: Final answer
    x = 45,822.99

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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.