Home / 81,134.24-111,952.20-45,322.40

Finding the Fourth Proportional to 81,134.24, 111,952.20 and 45,322.40

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Solution

The fourth proportional to 81,134.24, 111,952.20 and 45,322.40 is: 62,537.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,134.24 : 111,952.20 = 45,322.40 : x
  2. Step 2: Convert to fraction form
    81,134.24/111,952.20 = 45,322.40/x
  3. Step 3: Cross multiply
    81,134.24x = 111,952.20 × 45,322.40
  4. Step 4: Simplify right side
    81,134.24x = 5,073,942,389.28
  5. Step 5: Solve for x
    x = 5,073,942,389.28/81,134.24
  6. Step 6: Final answer
    x = 62,537.62

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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.