Home / 88,142.38-121,624.23-51,845.47

Finding the Fourth Proportional to 88,142.38, 121,624.23 and 51,845.47

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Solution

The fourth proportional to 88,142.38, 121,624.23 and 51,845.47 is: 71,539.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,142.38 : 121,624.23 = 51,845.47 : x
  2. Step 2: Convert to fraction form
    88,142.38/121,624.23 = 51,845.47/x
  3. Step 3: Cross multiply
    88,142.38x = 121,624.23 × 51,845.47
  4. Step 4: Simplify right side
    88,142.38x = 6,305,665,258.10
  5. Step 5: Solve for x
    x = 6,305,665,258.10/88,142.38
  6. Step 6: Final answer
    x = 71,539.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.