Home / 87,519.42-120,940.29-71,598.06

Finding the Fourth Proportional to 87,519.42, 120,940.29 and 71,598.06

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Solution

The fourth proportional to 87,519.42, 120,940.29 and 71,598.06 is: 98,939.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,519.42 : 120,940.29 = 71,598.06 : x
  2. Step 2: Convert to fraction form
    87,519.42/120,940.29 = 71,598.06/x
  3. Step 3: Cross multiply
    87,519.42x = 120,940.29 × 71,598.06
  4. Step 4: Simplify right side
    87,519.42x = 8,659,090,139.84
  5. Step 5: Solve for x
    x = 8,659,090,139.84/87,519.42
  6. Step 6: Final answer
    x = 98,939.07

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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.