Home / 89,785.20-134,505.40-50,222.40

Finding the Fourth Proportional to 89,785.20, 134,505.40 and 50,222.40

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Solution

The fourth proportional to 89,785.20, 134,505.40 and 50,222.40 is: 75,237.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,785.20 : 134,505.40 = 50,222.40 : x
  2. Step 2: Convert to fraction form
    89,785.20/134,505.40 = 50,222.40/x
  3. Step 3: Cross multiply
    89,785.20x = 134,505.40 × 50,222.40
  4. Step 4: Simplify right side
    89,785.20x = 6,755,184,000.96
  5. Step 5: Solve for x
    x = 6,755,184,000.96/89,785.20
  6. Step 6: Final answer
    x = 75,237.17

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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.