Home / 60,787.28-91,151.72-28,739.66

Finding the Fourth Proportional to 60,787.28, 91,151.72 and 28,739.66

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Solution

The fourth proportional to 60,787.28, 91,151.72 and 28,739.66 is: 43,095.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,787.28 : 91,151.72 = 28,739.66 : x
  2. Step 2: Convert to fraction form
    60,787.28/91,151.72 = 28,739.66/x
  3. Step 3: Cross multiply
    60,787.28x = 91,151.72 × 28,739.66
  4. Step 4: Simplify right side
    60,787.28x = 2,619,669,441.22
  5. Step 5: Solve for x
    x = 2,619,669,441.22/60,787.28
  6. Step 6: Final answer
    x = 43,095.68

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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.