Home / 89,931.12-134,965.80-33,812.70

Finding the Fourth Proportional to 89,931.12, 134,965.80 and 33,812.70

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Solution

The fourth proportional to 89,931.12, 134,965.80 and 33,812.70 is: 50,745.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,931.12 : 134,965.80 = 33,812.70 : x
  2. Step 2: Convert to fraction form
    89,931.12/134,965.80 = 33,812.70/x
  3. Step 3: Cross multiply
    89,931.12x = 134,965.80 × 33,812.70
  4. Step 4: Simplify right side
    89,931.12x = 4,563,558,105.66
  5. Step 5: Solve for x
    x = 4,563,558,105.66/89,931.12
  6. Step 6: Final answer
    x = 50,745.04

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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.