Home / 64,914.12-97,380.72-20,530.80

Finding the Fourth Proportional to 64,914.12, 97,380.72 and 20,530.80

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Solution

The fourth proportional to 64,914.12, 97,380.72 and 20,530.80 is: 30,799.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,914.12 : 97,380.72 = 20,530.80 : x
  2. Step 2: Convert to fraction form
    64,914.12/97,380.72 = 20,530.80/x
  3. Step 3: Cross multiply
    64,914.12x = 97,380.72 × 20,530.80
  4. Step 4: Simplify right side
    64,914.12x = 1,999,304,086.18
  5. Step 5: Solve for x
    x = 1,999,304,086.18/64,914.12
  6. Step 6: Final answer
    x = 30,799.22

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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.