Home / 87,577.09-120,806.01-55,300.21

Finding the Fourth Proportional to 87,577.09, 120,806.01 and 55,300.21

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Solution

The fourth proportional to 87,577.09, 120,806.01 and 55,300.21 is: 76,282.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,577.09 : 120,806.01 = 55,300.21 : x
  2. Step 2: Convert to fraction form
    87,577.09/120,806.01 = 55,300.21/x
  3. Step 3: Cross multiply
    87,577.09x = 120,806.01 × 55,300.21
  4. Step 4: Simplify right side
    87,577.09x = 6,680,597,118.23
  5. Step 5: Solve for x
    x = 6,680,597,118.23/87,577.09
  6. Step 6: Final answer
    x = 76,282.48

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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.