Home / 67,142.18-100,622.55-25,566.50

Finding the Fourth Proportional to 67,142.18, 100,622.55 and 25,566.50

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Solution

The fourth proportional to 67,142.18, 100,622.55 and 25,566.50 is: 38,315.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,142.18 : 100,622.55 = 25,566.50 : x
  2. Step 2: Convert to fraction form
    67,142.18/100,622.55 = 25,566.50/x
  3. Step 3: Cross multiply
    67,142.18x = 100,622.55 × 25,566.50
  4. Step 4: Simplify right side
    67,142.18x = 2,572,566,772.01
  5. Step 5: Solve for x
    x = 2,572,566,772.01/67,142.18
  6. Step 6: Final answer
    x = 38,315.21

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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.