Home / 64,909.20-97,375.82-20,547.12

Finding the Fourth Proportional to 64,909.20, 97,375.82 and 20,547.12

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Solution

The fourth proportional to 64,909.20, 97,375.82 and 20,547.12 is: 30,824.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,909.20 : 97,375.82 = 20,547.12 : x
  2. Step 2: Convert to fraction form
    64,909.20/97,375.82 = 20,547.12/x
  3. Step 3: Cross multiply
    64,909.20x = 97,375.82 × 20,547.12
  4. Step 4: Simplify right side
    64,909.20x = 2,000,792,658.64
  5. Step 5: Solve for x
    x = 2,000,792,658.64/64,909.20
  6. Step 6: Final answer
    x = 30,824.48

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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.