Home / 66,052.20-98,981.10-56,137.80

Finding the Fourth Proportional to 66,052.20, 98,981.10 and 56,137.80

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Solution

The fourth proportional to 66,052.20, 98,981.10 and 56,137.80 is: 84,124.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,052.20 : 98,981.10 = 56,137.80 : x
  2. Step 2: Convert to fraction form
    66,052.20/98,981.10 = 56,137.80/x
  3. Step 3: Cross multiply
    66,052.20x = 98,981.10 × 56,137.80
  4. Step 4: Simplify right side
    66,052.20x = 5,556,581,195.58
  5. Step 5: Solve for x
    x = 5,556,581,195.58/66,052.20
  6. Step 6: Final answer
    x = 84,124.09

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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.