Home / 76,664.91-105,797.57-42,672.66

Finding the Fourth Proportional to 76,664.91, 105,797.57 and 42,672.66

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Solution

The fourth proportional to 76,664.91, 105,797.57 and 42,672.66 is: 58,888.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,664.91 : 105,797.57 = 42,672.66 : x
  2. Step 2: Convert to fraction form
    76,664.91/105,797.57 = 42,672.66/x
  3. Step 3: Cross multiply
    76,664.91x = 105,797.57 × 42,672.66
  4. Step 4: Simplify right side
    76,664.91x = 4,514,664,136.02
  5. Step 5: Solve for x
    x = 4,514,664,136.02/76,664.91
  6. Step 6: Final answer
    x = 58,888.27

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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.