Home / 80,513.04-111,121.12-46,972.56

Finding the Fourth Proportional to 80,513.04, 111,121.12 and 46,972.56

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Solution

The fourth proportional to 80,513.04, 111,121.12 and 46,972.56 is: 64,829.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,513.04 : 111,121.12 = 46,972.56 : x
  2. Step 2: Convert to fraction form
    80,513.04/111,121.12 = 46,972.56/x
  3. Step 3: Cross multiply
    80,513.04x = 111,121.12 × 46,972.56
  4. Step 4: Simplify right side
    80,513.04x = 5,219,643,476.47
  5. Step 5: Solve for x
    x = 5,219,643,476.47/80,513.04
  6. Step 6: Final answer
    x = 64,829.79

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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.