Home / 86,221.04-129,352.20-27,056.60

Finding the Fourth Proportional to 86,221.04, 129,352.20 and 27,056.60

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Solution

The fourth proportional to 86,221.04, 129,352.20 and 27,056.60 is: 40,591.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,221.04 : 129,352.20 = 27,056.60 : x
  2. Step 2: Convert to fraction form
    86,221.04/129,352.20 = 27,056.60/x
  3. Step 3: Cross multiply
    86,221.04x = 129,352.20 × 27,056.60
  4. Step 4: Simplify right side
    86,221.04x = 3,499,830,734.52
  5. Step 5: Solve for x
    x = 3,499,830,734.52/86,221.04
  6. Step 6: Final answer
    x = 40,591.38

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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.