Home / 45,125.17-67,712.36-20,164.21

Finding the Fourth Proportional to 45,125.17, 67,712.36 and 20,164.21

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Solution

The fourth proportional to 45,125.17, 67,712.36 and 20,164.21 is: 30,257.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,125.17 : 67,712.36 = 20,164.21 : x
  2. Step 2: Convert to fraction form
    45,125.17/67,712.36 = 20,164.21/x
  3. Step 3: Cross multiply
    45,125.17x = 67,712.36 × 20,164.21
  4. Step 4: Simplify right side
    45,125.17x = 1,365,365,976.53
  5. Step 5: Solve for x
    x = 1,365,365,976.53/45,125.17
  6. Step 6: Final answer
    x = 30,257.31

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1.5x scale

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.