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Finding the Fourth Proportional to 44,355.20, 66,532.80 and 28,608.80

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Solution

The fourth proportional to 44,355.20, 66,532.80 and 28,608.80 is: 42,913.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,355.20 : 66,532.80 = 28,608.80 : x
  2. Step 2: Convert to fraction form
    44,355.20/66,532.80 = 28,608.80/x
  3. Step 3: Cross multiply
    44,355.20x = 66,532.80 × 28,608.80
  4. Step 4: Simplify right side
    44,355.20x = 1,903,423,568.64
  5. Step 5: Solve for x
    x = 1,903,423,568.64/44,355.20
  6. Step 6: Final answer
    x = 42,913.20

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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.