Home / 81,611.55-122,364.27-34,257.13

Finding the Fourth Proportional to 81,611.55, 122,364.27 and 34,257.13

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Solution

The fourth proportional to 81,611.55, 122,364.27 and 34,257.13 is: 51,363.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,611.55 : 122,364.27 = 34,257.13 : x
  2. Step 2: Convert to fraction form
    81,611.55/122,364.27 = 34,257.13/x
  3. Step 3: Cross multiply
    81,611.55x = 122,364.27 × 34,257.13
  4. Step 4: Simplify right side
    81,611.55x = 4,191,848,398.83
  5. Step 5: Solve for x
    x = 4,191,848,398.83/81,611.55
  6. Step 6: Final answer
    x = 51,363.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.