Home / 86,834.20-130,154.10-36,905.80

Finding the Fourth Proportional to 86,834.20, 130,154.10 and 36,905.80

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Solution

The fourth proportional to 86,834.20, 130,154.10 and 36,905.80 is: 55,317.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,834.20 : 130,154.10 = 36,905.80 : x
  2. Step 2: Convert to fraction form
    86,834.20/130,154.10 = 36,905.80/x
  3. Step 3: Cross multiply
    86,834.20x = 130,154.10 × 36,905.80
  4. Step 4: Simplify right side
    86,834.20x = 4,803,441,183.78
  5. Step 5: Solve for x
    x = 4,803,441,183.78/86,834.20
  6. Step 6: Final answer
    x = 55,317.39

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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.