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Finding the Fourth Proportional to 48,244, 72,276 and 28,463.80

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Solution

The fourth proportional to 48,244, 72,276 and 28,463.80 is: 42,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,244 : 72,276 = 28,463.80 : x
  2. Step 2: Convert to fraction form
    48,244/72,276 = 28,463.80/x
  3. Step 3: Cross multiply
    48,244x = 72,276 × 28,463.80
  4. Step 4: Simplify right side
    48,244x = 2,057,249,608.80
  5. Step 5: Solve for x
    x = 2,057,249,608.80/48,244
  6. Step 6: Final answer
    x = 42,642.60

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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.