Home / 42,770.20-64,033.80-40,442.80

Finding the Fourth Proportional to 42,770.20, 64,033.80 and 40,442.80

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Solution

The fourth proportional to 42,770.20, 64,033.80 and 40,442.80 is: 60,549.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,770.20 : 64,033.80 = 40,442.80 : x
  2. Step 2: Convert to fraction form
    42,770.20/64,033.80 = 40,442.80/x
  3. Step 3: Cross multiply
    42,770.20x = 64,033.80 × 40,442.80
  4. Step 4: Simplify right side
    42,770.20x = 2,589,706,166.64
  5. Step 5: Solve for x
    x = 2,589,706,166.64/42,770.20
  6. Step 6: Final answer
    x = 60,549.31

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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.