Home / 81,532.07-112,466.58-51,269.48

Finding the Fourth Proportional to 81,532.07, 112,466.58 and 51,269.48

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Solution

The fourth proportional to 81,532.07, 112,466.58 and 51,269.48 is: 70,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,532.07 : 112,466.58 = 51,269.48 : x
  2. Step 2: Convert to fraction form
    81,532.07/112,466.58 = 51,269.48/x
  3. Step 3: Cross multiply
    81,532.07x = 112,466.58 × 51,269.48
  4. Step 4: Simplify right side
    81,532.07x = 5,766,103,073.98
  5. Step 5: Solve for x
    x = 5,766,103,073.98/81,532.07
  6. Step 6: Final answer
    x = 70,721.90

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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.