Home / 42,770.23-64,149.87-17,805.62

Finding the Fourth Proportional to 42,770.23, 64,149.87 and 17,805.62

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Solution

The fourth proportional to 42,770.23, 64,149.87 and 17,805.62 is: 26,706.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,770.23 : 64,149.87 = 17,805.62 : x
  2. Step 2: Convert to fraction form
    42,770.23/64,149.87 = 17,805.62/x
  3. Step 3: Cross multiply
    42,770.23x = 64,149.87 × 17,805.62
  4. Step 4: Simplify right side
    42,770.23x = 1,142,228,435.42
  5. Step 5: Solve for x
    x = 1,142,228,435.42/42,770.23
  6. Step 6: Final answer
    x = 26,706.16

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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.