Home / 81,303.41-121,977.08-33,902.84

Finding the Fourth Proportional to 81,303.41, 121,977.08 and 33,902.84

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Solution

The fourth proportional to 81,303.41, 121,977.08 and 33,902.84 is: 50,863.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,303.41 : 121,977.08 = 33,902.84 : x
  2. Step 2: Convert to fraction form
    81,303.41/121,977.08 = 33,902.84/x
  3. Step 3: Cross multiply
    81,303.41x = 121,977.08 × 33,902.84
  4. Step 4: Simplify right side
    81,303.41x = 4,135,369,426.91
  5. Step 5: Solve for x
    x = 4,135,369,426.91/81,303.41
  6. Step 6: Final answer
    x = 50,863.42

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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.