Home / 45,664.40-68,496.60-28,077.20

Finding the Fourth Proportional to 45,664.40, 68,496.60 and 28,077.20

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Solution

The fourth proportional to 45,664.40, 68,496.60 and 28,077.20 is: 42,115.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,664.40 : 68,496.60 = 28,077.20 : x
  2. Step 2: Convert to fraction form
    45,664.40/68,496.60 = 28,077.20/x
  3. Step 3: Cross multiply
    45,664.40x = 68,496.60 × 28,077.20
  4. Step 4: Simplify right side
    45,664.40x = 1,923,192,737.52
  5. Step 5: Solve for x
    x = 1,923,192,737.52/45,664.40
  6. Step 6: Final answer
    x = 42,115.80

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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.