Home / 83,637.02-115,411.41-49,639.65

Finding the Fourth Proportional to 83,637.02, 115,411.41 and 49,639.65

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Solution

The fourth proportional to 83,637.02, 115,411.41 and 49,639.65 is: 68,498.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,637.02 : 115,411.41 = 49,639.65 : x
  2. Step 2: Convert to fraction form
    83,637.02/115,411.41 = 49,639.65/x
  3. Step 3: Cross multiply
    83,637.02x = 115,411.41 × 49,639.65
  4. Step 4: Simplify right side
    83,637.02x = 5,728,981,998.41
  5. Step 5: Solve for x
    x = 5,728,981,998.41/83,637.02
  6. Step 6: Final answer
    x = 68,498.16

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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.