Home / 87,104.81-120,077.39-61,566.12

Finding the Fourth Proportional to 87,104.81, 120,077.39 and 61,566.12

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Solution

The fourth proportional to 87,104.81, 120,077.39 and 61,566.12 is: 84,871.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,104.81 : 120,077.39 = 61,566.12 : x
  2. Step 2: Convert to fraction form
    87,104.81/120,077.39 = 61,566.12/x
  3. Step 3: Cross multiply
    87,104.81x = 120,077.39 × 61,566.12
  4. Step 4: Simplify right side
    87,104.81x = 7,392,698,694.20
  5. Step 5: Solve for x
    x = 7,392,698,694.20/87,104.81
  6. Step 6: Final answer
    x = 84,871.30

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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.