Home / 87,667.80-131,436.90-48,269.40

Finding the Fourth Proportional to 87,667.80, 131,436.90 and 48,269.40

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Solution

The fourth proportional to 87,667.80, 131,436.90 and 48,269.40 is: 72,368.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,667.80 : 131,436.90 = 48,269.40 : x
  2. Step 2: Convert to fraction form
    87,667.80/131,436.90 = 48,269.40/x
  3. Step 3: Cross multiply
    87,667.80x = 131,436.90 × 48,269.40
  4. Step 4: Simplify right side
    87,667.80x = 6,344,380,300.86
  5. Step 5: Solve for x
    x = 6,344,380,300.86/87,667.80
  6. Step 6: Final answer
    x = 72,368.42

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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.