Home / 45,239.40-67,877.28-20,262.24

Finding the Fourth Proportional to 45,239.40, 67,877.28 and 20,262.24

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Solution

The fourth proportional to 45,239.40, 67,877.28 and 20,262.24 is: 30,401.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,239.40 : 67,877.28 = 20,262.24 : x
  2. Step 2: Convert to fraction form
    45,239.40/67,877.28 = 20,262.24/x
  3. Step 3: Cross multiply
    45,239.40x = 67,877.28 × 20,262.24
  4. Step 4: Simplify right side
    45,239.40x = 1,375,345,737.91
  5. Step 5: Solve for x
    x = 1,375,345,737.91/45,239.40
  6. Step 6: Final answer
    x = 30,401.50

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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.