Home / 87,012.56-120,075-49,298.96

Finding the Fourth Proportional to 87,012.56, 120,075 and 49,298.96

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Solution

The fourth proportional to 87,012.56, 120,075 and 49,298.96 is: 68,031.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,012.56 : 120,075 = 49,298.96 : x
  2. Step 2: Convert to fraction form
    87,012.56/120,075 = 49,298.96/x
  3. Step 3: Cross multiply
    87,012.56x = 120,075 × 49,298.96
  4. Step 4: Simplify right side
    87,012.56x = 5,919,572,622
  5. Step 5: Solve for x
    x = 5,919,572,622/87,012.56
  6. Step 6: Final answer
    x = 68,031.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.