Home / 87,520.42-120,941.67-71,599.06

Finding the Fourth Proportional to 87,520.42, 120,941.67 and 71,599.06

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Solution

The fourth proportional to 87,520.42, 120,941.67 and 71,599.06 is: 98,940.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,520.42 : 120,941.67 = 71,599.06 : x
  2. Step 2: Convert to fraction form
    87,520.42/120,941.67 = 71,599.06/x
  3. Step 3: Cross multiply
    87,520.42x = 120,941.67 × 71,599.06
  4. Step 4: Simplify right side
    87,520.42x = 8,659,309,886.83
  5. Step 5: Solve for x
    x = 8,659,309,886.83/87,520.42
  6. Step 6: Final answer
    x = 98,940.45

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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.