Home / 83,637.17-115,366.80-49,621.58

Finding the Fourth Proportional to 83,637.17, 115,366.80 and 49,621.58

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Solution

The fourth proportional to 83,637.17, 115,366.80 and 49,621.58 is: 68,446.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,637.17 : 115,366.80 = 49,621.58 : x
  2. Step 2: Convert to fraction form
    83,637.17/115,366.80 = 49,621.58/x
  3. Step 3: Cross multiply
    83,637.17x = 115,366.80 × 49,621.58
  4. Step 4: Simplify right side
    83,637.17x = 5,724,682,895.54
  5. Step 5: Solve for x
    x = 5,724,682,895.54/83,637.17
  6. Step 6: Final answer
    x = 68,446.64

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1.5x scale

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.