Home / 87,492.29-131,259.34-28,328.03

Finding the Fourth Proportional to 87,492.29, 131,259.34 and 28,328.03

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Solution

The fourth proportional to 87,492.29, 131,259.34 and 28,328.03 is: 42,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,492.29 : 131,259.34 = 28,328.03 : x
  2. Step 2: Convert to fraction form
    87,492.29/131,259.34 = 28,328.03/x
  3. Step 3: Cross multiply
    87,492.29x = 131,259.34 × 28,328.03
  4. Step 4: Simplify right side
    87,492.29x = 3,718,317,865.00
  5. Step 5: Solve for x
    x = 3,718,317,865.00/87,492.29
  6. Step 6: Final answer
    x = 42,498.81

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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.