Home / 81,176.40-111,593.28-69,804.24

Finding the Fourth Proportional to 81,176.40, 111,593.28 and 69,804.24

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Solution

The fourth proportional to 81,176.40, 111,593.28 and 69,804.24 is: 95,959.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,176.40 : 111,593.28 = 69,804.24 : x
  2. Step 2: Convert to fraction form
    81,176.40/111,593.28 = 69,804.24/x
  3. Step 3: Cross multiply
    81,176.40x = 111,593.28 × 69,804.24
  4. Step 4: Simplify right side
    81,176.40x = 7,789,684,099.51
  5. Step 5: Solve for x
    x = 7,789,684,099.51/81,176.40
  6. Step 6: Final answer
    x = 95,959.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.