Home / 80,628.80-111,259.68-46,634.72

Finding the Fourth Proportional to 80,628.80, 111,259.68 and 46,634.72

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Solution

The fourth proportional to 80,628.80, 111,259.68 and 46,634.72 is: 64,351.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,628.80 : 111,259.68 = 46,634.72 : x
  2. Step 2: Convert to fraction form
    80,628.80/111,259.68 = 46,634.72/x
  3. Step 3: Cross multiply
    80,628.80x = 111,259.68 × 46,634.72
  4. Step 4: Simplify right side
    80,628.80x = 5,188,564,024.09
  5. Step 5: Solve for x
    x = 5,188,564,024.09/80,628.80
  6. Step 6: Final answer
    x = 64,351.25

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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.