Home / 99,826.43-137,710.75-59,511.78

Finding the Fourth Proportional to 99,826.43, 137,710.75 and 59,511.78

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Solution

The fourth proportional to 99,826.43, 137,710.75 and 59,511.78 is: 82,096.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,826.43 : 137,710.75 = 59,511.78 : x
  2. Step 2: Convert to fraction form
    99,826.43/137,710.75 = 59,511.78/x
  3. Step 3: Cross multiply
    99,826.43x = 137,710.75 × 59,511.78
  4. Step 4: Simplify right side
    99,826.43x = 8,195,411,560.08
  5. Step 5: Solve for x
    x = 8,195,411,560.08/99,826.43
  6. Step 6: Final answer
    x = 82,096.61

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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.