Home / 87,530.84-131,211.24-69,718.04

Finding the Fourth Proportional to 87,530.84, 131,211.24 and 69,718.04

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Solution

The fourth proportional to 87,530.84, 131,211.24 and 69,718.04 is: 104,509.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,530.84 : 131,211.24 = 69,718.04 : x
  2. Step 2: Convert to fraction form
    87,530.84/131,211.24 = 69,718.04/x
  3. Step 3: Cross multiply
    87,530.84x = 131,211.24 × 69,718.04
  4. Step 4: Simplify right side
    87,530.84x = 9,147,790,478.77
  5. Step 5: Solve for x
    x = 9,147,790,478.77/87,530.84
  6. Step 6: Final answer
    x = 104,509.34

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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.