Home / 87,855.40-131,783.10-40,470.40

Finding the Fourth Proportional to 87,855.40, 131,783.10 and 40,470.40

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Solution

The fourth proportional to 87,855.40, 131,783.10 and 40,470.40 is: 60,705.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,855.40 : 131,783.10 = 40,470.40 : x
  2. Step 2: Convert to fraction form
    87,855.40/131,783.10 = 40,470.40/x
  3. Step 3: Cross multiply
    87,855.40x = 131,783.10 × 40,470.40
  4. Step 4: Simplify right side
    87,855.40x = 5,333,314,770.24
  5. Step 5: Solve for x
    x = 5,333,314,770.24/87,855.40
  6. Step 6: Final answer
    x = 60,705.60

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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.