Home / 80,952.87-111,715.44-45,145.14

Finding the Fourth Proportional to 80,952.87, 111,715.44 and 45,145.14

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Solution

The fourth proportional to 80,952.87, 111,715.44 and 45,145.14 is: 62,300.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,952.87 : 111,715.44 = 45,145.14 : x
  2. Step 2: Convert to fraction form
    80,952.87/111,715.44 = 45,145.14/x
  3. Step 3: Cross multiply
    80,952.87x = 111,715.44 × 45,145.14
  4. Step 4: Simplify right side
    80,952.87x = 5,043,409,767.19
  5. Step 5: Solve for x
    x = 5,043,409,767.19/80,952.87
  6. Step 6: Final answer
    x = 62,300.57

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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.