Home / 83,516.41-115,257.36-49,545.01

Finding the Fourth Proportional to 83,516.41, 115,257.36 and 49,545.01

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Solution

The fourth proportional to 83,516.41, 115,257.36 and 49,545.01 is: 68,374.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,516.41 : 115,257.36 = 49,545.01 : x
  2. Step 2: Convert to fraction form
    83,516.41/115,257.36 = 49,545.01/x
  3. Step 3: Cross multiply
    83,516.41x = 115,257.36 × 49,545.01
  4. Step 4: Simplify right side
    83,516.41x = 5,710,427,053.77
  5. Step 5: Solve for x
    x = 5,710,427,053.77/83,516.41
  6. Step 6: Final answer
    x = 68,374.91

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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.