Home / 82,420.70-123,624.22-26,258.54

Finding the Fourth Proportional to 82,420.70, 123,624.22 and 26,258.54

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Solution

The fourth proportional to 82,420.70, 123,624.22 and 26,258.54 is: 39,385.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,420.70 : 123,624.22 = 26,258.54 : x
  2. Step 2: Convert to fraction form
    82,420.70/123,624.22 = 26,258.54/x
  3. Step 3: Cross multiply
    82,420.70x = 123,624.22 × 26,258.54
  4. Step 4: Simplify right side
    82,420.70x = 3,246,191,525.84
  5. Step 5: Solve for x
    x = 3,246,191,525.84/82,420.70
  6. Step 6: Final answer
    x = 39,385.63

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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.