Home / 82,979.48-124,357.62-45,483.32

Finding the Fourth Proportional to 82,979.48, 124,357.62 and 45,483.32

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Solution

The fourth proportional to 82,979.48, 124,357.62 and 45,483.32 is: 68,163.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,979.48 : 124,357.62 = 45,483.32 : x
  2. Step 2: Convert to fraction form
    82,979.48/124,357.62 = 45,483.32/x
  3. Step 3: Cross multiply
    82,979.48x = 124,357.62 × 45,483.32
  4. Step 4: Simplify right side
    82,979.48x = 5,656,197,424.90
  5. Step 5: Solve for x
    x = 5,656,197,424.90/82,979.48
  6. Step 6: Final answer
    x = 68,163.81

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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.