Home / 64,909.12-97,373.22-20,525.80

Finding the Fourth Proportional to 64,909.12, 97,373.22 and 20,525.80

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Solution

The fourth proportional to 64,909.12, 97,373.22 and 20,525.80 is: 30,791.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,909.12 : 97,373.22 = 20,525.80 : x
  2. Step 2: Convert to fraction form
    64,909.12/97,373.22 = 20,525.80/x
  3. Step 3: Cross multiply
    64,909.12x = 97,373.22 × 20,525.80
  4. Step 4: Simplify right side
    64,909.12x = 1,998,663,239.08
  5. Step 5: Solve for x
    x = 1,998,663,239.08/64,909.12
  6. Step 6: Final answer
    x = 30,791.72

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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.