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Finding the Fourth Proportional to 48,143.20, 72,214.80 and 48,143.20

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Solution

The fourth proportional to 48,143.20, 72,214.80 and 48,143.20 is: 72,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,143.20 : 72,214.80 = 48,143.20 : x
  2. Step 2: Convert to fraction form
    48,143.20/72,214.80 = 48,143.20/x
  3. Step 3: Cross multiply
    48,143.20x = 72,214.80 × 48,143.20
  4. Step 4: Simplify right side
    48,143.20x = 3,476,651,559.36
  5. Step 5: Solve for x
    x = 3,476,651,559.36/48,143.20
  6. Step 6: Final answer
    x = 72,214.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.