Home / 83,837.50-115,688.73-49,376.77

Finding the Fourth Proportional to 83,837.50, 115,688.73 and 49,376.77

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Solution

The fourth proportional to 83,837.50, 115,688.73 and 49,376.77 is: 68,135.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,837.50 : 115,688.73 = 49,376.77 : x
  2. Step 2: Convert to fraction form
    83,837.50/115,688.73 = 49,376.77/x
  3. Step 3: Cross multiply
    83,837.50x = 115,688.73 × 49,376.77
  4. Step 4: Simplify right side
    83,837.50x = 5,712,335,812.80
  5. Step 5: Solve for x
    x = 5,712,335,812.80/83,837.50
  6. Step 6: Final answer
    x = 68,135.81

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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.