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Finding the Fourth Proportional to 86,667.62, 119,635.73 and 54,393.58

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Solution

The fourth proportional to 86,667.62, 119,635.73 and 54,393.58 is: 75,084.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,667.62 : 119,635.73 = 54,393.58 : x
  2. Step 2: Convert to fraction form
    86,667.62/119,635.73 = 54,393.58/x
  3. Step 3: Cross multiply
    86,667.62x = 119,635.73 × 54,393.58
  4. Step 4: Simplify right side
    86,667.62x = 6,507,415,365.18
  5. Step 5: Solve for x
    x = 6,507,415,365.18/86,667.62
  6. Step 6: Final answer
    x = 75,084.74

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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.