Home / 82,140.28-113,345.16-60,641.44

Finding the Fourth Proportional to 82,140.28, 113,345.16 and 60,641.44

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Solution

The fourth proportional to 82,140.28, 113,345.16 and 60,641.44 is: 83,678.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,140.28 : 113,345.16 = 60,641.44 : x
  2. Step 2: Convert to fraction form
    82,140.28/113,345.16 = 60,641.44/x
  3. Step 3: Cross multiply
    82,140.28x = 113,345.16 × 60,641.44
  4. Step 4: Simplify right side
    82,140.28x = 6,873,413,719.43
  5. Step 5: Solve for x
    x = 6,873,413,719.43/82,140.28
  6. Step 6: Final answer
    x = 83,678.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.