Home / 81,333.74-122,006.85-28,003.82

Finding the Fourth Proportional to 81,333.74, 122,006.85 and 28,003.82

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Solution

The fourth proportional to 81,333.74, 122,006.85 and 28,003.82 is: 42,007.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,333.74 : 122,006.85 = 28,003.82 : x
  2. Step 2: Convert to fraction form
    81,333.74/122,006.85 = 28,003.82/x
  3. Step 3: Cross multiply
    81,333.74x = 122,006.85 × 28,003.82
  4. Step 4: Simplify right side
    81,333.74x = 3,416,657,866.17
  5. Step 5: Solve for x
    x = 3,416,657,866.17/81,333.74
  6. Step 6: Final answer
    x = 42,007.88

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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.