Home / 87,870.27-121,261.08-47,584.09

Finding the Fourth Proportional to 87,870.27, 121,261.08 and 47,584.09

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Solution

The fourth proportional to 87,870.27, 121,261.08 and 47,584.09 is: 65,666.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,870.27 : 121,261.08 = 47,584.09 : x
  2. Step 2: Convert to fraction form
    87,870.27/121,261.08 = 47,584.09/x
  3. Step 3: Cross multiply
    87,870.27x = 121,261.08 × 47,584.09
  4. Step 4: Simplify right side
    87,870.27x = 5,770,098,474.23
  5. Step 5: Solve for x
    x = 5,770,098,474.23/87,870.27
  6. Step 6: Final answer
    x = 65,666.11

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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.