Home / 86,932.80-130,399.20-27,770.40

Finding the Fourth Proportional to 86,932.80, 130,399.20 and 27,770.40

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Solution

The fourth proportional to 86,932.80, 130,399.20 and 27,770.40 is: 41,655.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,932.80 : 130,399.20 = 27,770.40 : x
  2. Step 2: Convert to fraction form
    86,932.80/130,399.20 = 27,770.40/x
  3. Step 3: Cross multiply
    86,932.80x = 130,399.20 × 27,770.40
  4. Step 4: Simplify right side
    86,932.80x = 3,621,237,943.68
  5. Step 5: Solve for x
    x = 3,621,237,943.68/86,932.80
  6. Step 6: Final answer
    x = 41,655.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.