Home / 69,360.96-95,711.20-39,143.36

Finding the Fourth Proportional to 69,360.96, 95,711.20 and 39,143.36

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Solution

The fourth proportional to 69,360.96, 95,711.20 and 39,143.36 is: 54,013.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,360.96 : 95,711.20 = 39,143.36 : x
  2. Step 2: Convert to fraction form
    69,360.96/95,711.20 = 39,143.36/x
  3. Step 3: Cross multiply
    69,360.96x = 95,711.20 × 39,143.36
  4. Step 4: Simplify right side
    69,360.96x = 3,746,457,957.63
  5. Step 5: Solve for x
    x = 3,746,457,957.63/69,360.96
  6. Step 6: Final answer
    x = 54,013.93

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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.