Home / 81,432.26-112,383.34-45,142.58

Finding the Fourth Proportional to 81,432.26, 112,383.34 and 45,142.58

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Solution

The fourth proportional to 81,432.26, 112,383.34 and 45,142.58 is: 62,300.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,432.26 : 112,383.34 = 45,142.58 : x
  2. Step 2: Convert to fraction form
    81,432.26/112,383.34 = 45,142.58/x
  3. Step 3: Cross multiply
    81,432.26x = 112,383.34 × 45,142.58
  4. Step 4: Simplify right side
    81,432.26x = 5,073,273,916.62
  5. Step 5: Solve for x
    x = 5,073,273,916.62/81,432.26
  6. Step 6: Final answer
    x = 62,300.54

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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.