Home / 74,275.92-102,462.62-48,778.61

Finding the Fourth Proportional to 74,275.92, 102,462.62 and 48,778.61

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Solution

The fourth proportional to 74,275.92, 102,462.62 and 48,778.61 is: 67,289.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,275.92 : 102,462.62 = 48,778.61 : x
  2. Step 2: Convert to fraction form
    74,275.92/102,462.62 = 48,778.61/x
  3. Step 3: Cross multiply
    74,275.92x = 102,462.62 × 48,778.61
  4. Step 4: Simplify right side
    74,275.92x = 4,997,983,424.35
  5. Step 5: Solve for x
    x = 4,997,983,424.35/74,275.92
  6. Step 6: Final answer
    x = 67,289.42

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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.