Home / 88,251.04-121,786.40-48,507.04

Finding the Fourth Proportional to 88,251.04, 121,786.40 and 48,507.04

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Solution

The fourth proportional to 88,251.04, 121,786.40 and 48,507.04 is: 66,939.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,251.04 : 121,786.40 = 48,507.04 : x
  2. Step 2: Convert to fraction form
    88,251.04/121,786.40 = 48,507.04/x
  3. Step 3: Cross multiply
    88,251.04x = 121,786.40 × 48,507.04
  4. Step 4: Simplify right side
    88,251.04x = 5,907,497,776.26
  5. Step 5: Solve for x
    x = 5,907,497,776.26/88,251.04
  6. Step 6: Final answer
    x = 66,939.70

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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.