Home / 81,017.21-121,553.78-33,657.74

Finding the Fourth Proportional to 81,017.21, 121,553.78 and 33,657.74

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Solution

The fourth proportional to 81,017.21, 121,553.78 and 33,657.74 is: 50,498.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,017.21 : 121,553.78 = 33,657.74 : x
  2. Step 2: Convert to fraction form
    81,017.21/121,553.78 = 33,657.74/x
  3. Step 3: Cross multiply
    81,017.21x = 121,553.78 × 33,657.74
  4. Step 4: Simplify right side
    81,017.21x = 4,091,225,354.97
  5. Step 5: Solve for x
    x = 4,091,225,354.97/81,017.21
  6. Step 6: Final answer
    x = 50,498.23

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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.