Home / 87,688.70-131,546.84-28,510.53

Finding the Fourth Proportional to 87,688.70, 131,546.84 and 28,510.53

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Solution

The fourth proportional to 87,688.70, 131,546.84 and 28,510.53 is: 42,770.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,688.70 : 131,546.84 = 28,510.53 : x
  2. Step 2: Convert to fraction form
    87,688.70/131,546.84 = 28,510.53/x
  3. Step 3: Cross multiply
    87,688.70x = 131,546.84 × 28,510.53
  4. Step 4: Simplify right side
    87,688.70x = 3,750,470,232.32
  5. Step 5: Solve for x
    x = 3,750,470,232.32/87,688.70
  6. Step 6: Final answer
    x = 42,770.28

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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.