Home / 79,285.56-109,356.78-67,330.04

Finding the Fourth Proportional to 79,285.56, 109,356.78 and 67,330.04

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Solution

The fourth proportional to 79,285.56, 109,356.78 and 67,330.04 is: 92,866.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,285.56 : 109,356.78 = 67,330.04 : x
  2. Step 2: Convert to fraction form
    79,285.56/109,356.78 = 67,330.04/x
  3. Step 3: Cross multiply
    79,285.56x = 109,356.78 × 67,330.04
  4. Step 4: Simplify right side
    79,285.56x = 7,362,996,371.67
  5. Step 5: Solve for x
    x = 7,362,996,371.67/79,285.56
  6. Step 6: Final answer
    x = 92,866.80

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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.