Home / 87,321.75-120,504.02-47,577.75

Finding the Fourth Proportional to 87,321.75, 120,504.02 and 47,577.75

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Solution

The fourth proportional to 87,321.75, 120,504.02 and 47,577.75 is: 65,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,321.75 : 120,504.02 = 47,577.75 : x
  2. Step 2: Convert to fraction form
    87,321.75/120,504.02 = 47,577.75/x
  3. Step 3: Cross multiply
    87,321.75x = 120,504.02 × 47,577.75
  4. Step 4: Simplify right side
    87,321.75x = 5,733,309,899.67
  5. Step 5: Solve for x
    x = 5,733,309,899.67/87,321.75
  6. Step 6: Final answer
    x = 65,657.30

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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.