Home / 87,803.40-131,402.70-52,768.20

Finding the Fourth Proportional to 87,803.40, 131,402.70 and 52,768.20

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Solution

The fourth proportional to 87,803.40, 131,402.70 and 52,768.20 is: 78,970.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,803.40 : 131,402.70 = 52,768.20 : x
  2. Step 2: Convert to fraction form
    87,803.40/131,402.70 = 52,768.20/x
  3. Step 3: Cross multiply
    87,803.40x = 131,402.70 × 52,768.20
  4. Step 4: Simplify right side
    87,803.40x = 6,933,883,954.14
  5. Step 5: Solve for x
    x = 6,933,883,954.14/87,803.40
  6. Step 6: Final answer
    x = 78,970.56

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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.