Home / 80,798.97-121,243.59-47,104.14

Finding the Fourth Proportional to 80,798.97, 121,243.59 and 47,104.14

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Solution

The fourth proportional to 80,798.97, 121,243.59 and 47,104.14 is: 70,682.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,798.97 : 121,243.59 = 47,104.14 : x
  2. Step 2: Convert to fraction form
    80,798.97/121,243.59 = 47,104.14/x
  3. Step 3: Cross multiply
    80,798.97x = 121,243.59 × 47,104.14
  4. Step 4: Simplify right side
    80,798.97x = 5,711,075,037.46
  5. Step 5: Solve for x
    x = 5,711,075,037.46/80,798.97
  6. Step 6: Final answer
    x = 70,682.52

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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.