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Finding the Fourth Proportional to 86,164.94, 118,871.06 and 52,611.50

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Solution

The fourth proportional to 86,164.94, 118,871.06 and 52,611.50 is: 72,581.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,164.94 : 118,871.06 = 52,611.50 : x
  2. Step 2: Convert to fraction form
    86,164.94/118,871.06 = 52,611.50/x
  3. Step 3: Cross multiply
    86,164.94x = 118,871.06 × 52,611.50
  4. Step 4: Simplify right side
    86,164.94x = 6,253,984,773.19
  5. Step 5: Solve for x
    x = 6,253,984,773.19/86,164.94
  6. Step 6: Final answer
    x = 72,581.55

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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.