Home / 98,099.83-135,382.20-57,815.29

Finding the Fourth Proportional to 98,099.83, 135,382.20 and 57,815.29

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Solution

The fourth proportional to 98,099.83, 135,382.20 and 57,815.29 is: 79,787.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,099.83 : 135,382.20 = 57,815.29 : x
  2. Step 2: Convert to fraction form
    98,099.83/135,382.20 = 57,815.29/x
  3. Step 3: Cross multiply
    98,099.83x = 135,382.20 × 57,815.29
  4. Step 4: Simplify right side
    98,099.83x = 7,827,161,153.84
  5. Step 5: Solve for x
    x = 7,827,161,153.84/98,099.83
  6. Step 6: Final answer
    x = 79,787.71

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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.