Home / 92,767.98-139,037.90-42,778.68

Finding the Fourth Proportional to 92,767.98, 139,037.90 and 42,778.68

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Solution

The fourth proportional to 92,767.98, 139,037.90 and 42,778.68 is: 64,115.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,767.98 : 139,037.90 = 42,778.68 : x
  2. Step 2: Convert to fraction form
    92,767.98/139,037.90 = 42,778.68/x
  3. Step 3: Cross multiply
    92,767.98x = 139,037.90 × 42,778.68
  4. Step 4: Simplify right side
    92,767.98x = 5,947,857,831.97
  5. Step 5: Solve for x
    x = 5,947,857,831.97/92,767.98
  6. Step 6: Final answer
    x = 64,115.42

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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.