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Finding the Fourth Proportional to 76,832.47, 105,787.53 and 65,324.75

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Solution

The fourth proportional to 76,832.47, 105,787.53 and 65,324.75 is: 89,943.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,832.47 : 105,787.53 = 65,324.75 : x
  2. Step 2: Convert to fraction form
    76,832.47/105,787.53 = 65,324.75/x
  3. Step 3: Cross multiply
    76,832.47x = 105,787.53 × 65,324.75
  4. Step 4: Simplify right side
    76,832.47x = 6,910,543,950.37
  5. Step 5: Solve for x
    x = 6,910,543,950.37/76,832.47
  6. Step 6: Final answer
    x = 89,943.01

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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.