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Finding the Fourth Proportional to 86,662.68, 119,587.07 and 49,870.08

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Solution

The fourth proportional to 86,662.68, 119,587.07 and 49,870.08 is: 68,816.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,662.68 : 119,587.07 = 49,870.08 : x
  2. Step 2: Convert to fraction form
    86,662.68/119,587.07 = 49,870.08/x
  3. Step 3: Cross multiply
    86,662.68x = 119,587.07 × 49,870.08
  4. Step 4: Simplify right side
    86,662.68x = 5,963,816,592.02
  5. Step 5: Solve for x
    x = 5,963,816,592.02/86,662.68
  6. Step 6: Final answer
    x = 68,816.44

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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.