Home / 79,273.17-109,391.58-43,455.78

Finding the Fourth Proportional to 79,273.17, 109,391.58 and 43,455.78

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Solution

The fourth proportional to 79,273.17, 109,391.58 and 43,455.78 is: 59,966.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,273.17 : 109,391.58 = 43,455.78 : x
  2. Step 2: Convert to fraction form
    79,273.17/109,391.58 = 43,455.78/x
  3. Step 3: Cross multiply
    79,273.17x = 109,391.58 × 43,455.78
  4. Step 4: Simplify right side
    79,273.17x = 4,753,696,434.33
  5. Step 5: Solve for x
    x = 4,753,696,434.33/79,273.17
  6. Step 6: Final answer
    x = 59,966.02

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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.