Home / 60,680.18-91,061.26-21,237.64

Finding the Fourth Proportional to 60,680.18, 91,061.26 and 21,237.64

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Solution

The fourth proportional to 60,680.18, 91,061.26 and 21,237.64 is: 31,870.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,680.18 : 91,061.26 = 21,237.64 : x
  2. Step 2: Convert to fraction form
    60,680.18/91,061.26 = 21,237.64/x
  3. Step 3: Cross multiply
    60,680.18x = 91,061.26 × 21,237.64
  4. Step 4: Simplify right side
    60,680.18x = 1,933,926,257.83
  5. Step 5: Solve for x
    x = 1,933,926,257.83/60,680.18
  6. Step 6: Final answer
    x = 31,870.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.