Home / 81,519.02-122,278.71-22,355.54

Finding the Fourth Proportional to 81,519.02, 122,278.71 and 22,355.54

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Solution

The fourth proportional to 81,519.02, 122,278.71 and 22,355.54 is: 33,533.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,519.02 : 122,278.71 = 22,355.54 : x
  2. Step 2: Convert to fraction form
    81,519.02/122,278.71 = 22,355.54/x
  3. Step 3: Cross multiply
    81,519.02x = 122,278.71 × 22,355.54
  4. Step 4: Simplify right side
    81,519.02x = 2,733,606,592.55
  5. Step 5: Solve for x
    x = 2,733,606,592.55/81,519.02
  6. Step 6: Final answer
    x = 33,533.36

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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.