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Finding the Fourth Proportional to 84,685.58, 127,017.84 and 49,166.18

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Solution

The fourth proportional to 84,685.58, 127,017.84 and 49,166.18 is: 73,743.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,685.58 : 127,017.84 = 49,166.18 : x
  2. Step 2: Convert to fraction form
    84,685.58/127,017.84 = 49,166.18/x
  3. Step 3: Cross multiply
    84,685.58x = 127,017.84 × 49,166.18
  4. Step 4: Simplify right side
    84,685.58x = 6,244,981,984.65
  5. Step 5: Solve for x
    x = 6,244,981,984.65/84,685.58
  6. Step 6: Final answer
    x = 73,743.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.