Home / 87,168.32-120,318.06-51,369.80

Finding the Fourth Proportional to 87,168.32, 120,318.06 and 51,369.80

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Solution

The fourth proportional to 87,168.32, 120,318.06 and 51,369.80 is: 70,905.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,168.32 : 120,318.06 = 51,369.80 : x
  2. Step 2: Convert to fraction form
    87,168.32/120,318.06 = 51,369.80/x
  3. Step 3: Cross multiply
    87,168.32x = 120,318.06 × 51,369.80
  4. Step 4: Simplify right side
    87,168.32x = 6,180,714,678.59
  5. Step 5: Solve for x
    x = 6,180,714,678.59/87,168.32
  6. Step 6: Final answer
    x = 70,905.52

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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.