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Finding the Fourth Proportional to 48,454.80, 72,667.80 and 18,855.60

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Solution

The fourth proportional to 48,454.80, 72,667.80 and 18,855.60 is: 28,277.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,454.80 : 72,667.80 = 18,855.60 : x
  2. Step 2: Convert to fraction form
    48,454.80/72,667.80 = 18,855.60/x
  3. Step 3: Cross multiply
    48,454.80x = 72,667.80 × 18,855.60
  4. Step 4: Simplify right side
    48,454.80x = 1,370,194,969.68
  5. Step 5: Solve for x
    x = 1,370,194,969.68/48,454.80
  6. Step 6: Final answer
    x = 28,277.80

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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.