Home / 87,178.37-120,310.15-48,416.37

Finding the Fourth Proportional to 87,178.37, 120,310.15 and 48,416.37

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Solution

The fourth proportional to 87,178.37, 120,310.15 and 48,416.37 is: 66,816.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,178.37 : 120,310.15 = 48,416.37 : x
  2. Step 2: Convert to fraction form
    87,178.37/120,310.15 = 48,416.37/x
  3. Step 3: Cross multiply
    87,178.37x = 120,310.15 × 48,416.37
  4. Step 4: Simplify right side
    87,178.37x = 5,824,980,737.16
  5. Step 5: Solve for x
    x = 5,824,980,737.16/87,178.37
  6. Step 6: Final answer
    x = 66,816.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.