Home / 87,334.32-120,632.76-64,714.80

Finding the Fourth Proportional to 87,334.32, 120,632.76 and 64,714.80

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Solution

The fourth proportional to 87,334.32, 120,632.76 and 64,714.80 is: 89,388.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,334.32 : 120,632.76 = 64,714.80 : x
  2. Step 2: Convert to fraction form
    87,334.32/120,632.76 = 64,714.80/x
  3. Step 3: Cross multiply
    87,334.32x = 120,632.76 × 64,714.80
  4. Step 4: Simplify right side
    87,334.32x = 7,806,724,936.85
  5. Step 5: Solve for x
    x = 7,806,724,936.85/87,334.32
  6. Step 6: Final answer
    x = 89,388.97

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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.