Home / 80,674.35-121,008.78-30,752.64

Finding the Fourth Proportional to 80,674.35, 121,008.78 and 30,752.64

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Solution

The fourth proportional to 80,674.35, 121,008.78 and 30,752.64 is: 46,127.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,674.35 : 121,008.78 = 30,752.64 : x
  2. Step 2: Convert to fraction form
    80,674.35/121,008.78 = 30,752.64/x
  3. Step 3: Cross multiply
    80,674.35x = 121,008.78 × 30,752.64
  4. Step 4: Simplify right side
    80,674.35x = 3,721,339,448.18
  5. Step 5: Solve for x
    x = 3,721,339,448.18/80,674.35
  6. Step 6: Final answer
    x = 46,127.91

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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.