Home / 82,841.16-124,172.37-40,672.20

Finding the Fourth Proportional to 82,841.16, 124,172.37 and 40,672.20

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Solution

The fourth proportional to 82,841.16, 124,172.37 and 40,672.20 is: 60,964.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,841.16 : 124,172.37 = 40,672.20 : x
  2. Step 2: Convert to fraction form
    82,841.16/124,172.37 = 40,672.20/x
  3. Step 3: Cross multiply
    82,841.16x = 124,172.37 × 40,672.20
  4. Step 4: Simplify right side
    82,841.16x = 5,050,363,467.11
  5. Step 5: Solve for x
    x = 5,050,363,467.11/82,841.16
  6. Step 6: Final answer
    x = 60,964.42

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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.