Home / 45,064.09-67,612.20-20,101.90

Finding the Fourth Proportional to 45,064.09, 67,612.20 and 20,101.90

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Solution

The fourth proportional to 45,064.09, 67,612.20 and 20,101.90 is: 30,160.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,064.09 : 67,612.20 = 20,101.90 : x
  2. Step 2: Convert to fraction form
    45,064.09/67,612.20 = 20,101.90/x
  3. Step 3: Cross multiply
    45,064.09x = 67,612.20 × 20,101.90
  4. Step 4: Simplify right side
    45,064.09x = 1,359,133,683.18
  5. Step 5: Solve for x
    x = 1,359,133,683.18/45,064.09
  6. Step 6: Final answer
    x = 30,160.02

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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.