Home / 73,317.28-101,179.68-39,783.20

Finding the Fourth Proportional to 73,317.28, 101,179.68 and 39,783.20

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Solution

The fourth proportional to 73,317.28, 101,179.68 and 39,783.20 is: 54,901.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,317.28 : 101,179.68 = 39,783.20 : x
  2. Step 2: Convert to fraction form
    73,317.28/101,179.68 = 39,783.20/x
  3. Step 3: Cross multiply
    73,317.28x = 101,179.68 × 39,783.20
  4. Step 4: Simplify right side
    73,317.28x = 4,025,251,445.38
  5. Step 5: Solve for x
    x = 4,025,251,445.38/73,317.28
  6. Step 6: Final answer
    x = 54,901.81

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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.