Home / 69,315.13-103,471.30-60,907.60

Finding the Fourth Proportional to 69,315.13, 103,471.30 and 60,907.60

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Solution

The fourth proportional to 69,315.13, 103,471.30 and 60,907.60 is: 90,920.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,315.13 : 103,471.30 = 60,907.60 : x
  2. Step 2: Convert to fraction form
    69,315.13/103,471.30 = 60,907.60/x
  3. Step 3: Cross multiply
    69,315.13x = 103,471.30 × 60,907.60
  4. Step 4: Simplify right side
    69,315.13x = 6,302,188,551.88
  5. Step 5: Solve for x
    x = 6,302,188,551.88/69,315.13
  6. Step 6: Final answer
    x = 90,920.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.