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Finding the Fourth Proportional to 86,228, 119,001.48 and 48,505.04

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Solution

The fourth proportional to 86,228, 119,001.48 and 48,505.04 is: 66,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,228 : 119,001.48 = 48,505.04 : x
  2. Step 2: Convert to fraction form
    86,228/119,001.48 = 48,505.04/x
  3. Step 3: Cross multiply
    86,228x = 119,001.48 × 48,505.04
  4. Step 4: Simplify right side
    86,228x = 5,772,171,547.46
  5. Step 5: Solve for x
    x = 5,772,171,547.46/86,228
  6. Step 6: Final answer
    x = 66,940.80

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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.