Home / 87,166.53-130,758.91-27,988.13

Finding the Fourth Proportional to 87,166.53, 130,758.91 and 27,988.13

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Solution

The fourth proportional to 87,166.53, 130,758.91 and 27,988.13 is: 41,985.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,166.53 : 130,758.91 = 27,988.13 : x
  2. Step 2: Convert to fraction form
    87,166.53/130,758.91 = 27,988.13/x
  3. Step 3: Cross multiply
    87,166.53x = 130,758.91 × 27,988.13
  4. Step 4: Simplify right side
    87,166.53x = 3,659,697,628.67
  5. Step 5: Solve for x
    x = 3,659,697,628.67/87,166.53
  6. Step 6: Final answer
    x = 41,985.12

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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.