Home / 78,823.41-108,776.30-50,529.11

Finding the Fourth Proportional to 78,823.41, 108,776.30 and 50,529.11

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Solution

The fourth proportional to 78,823.41, 108,776.30 and 50,529.11 is: 69,730.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,823.41 : 108,776.30 = 50,529.11 : x
  2. Step 2: Convert to fraction form
    78,823.41/108,776.30 = 50,529.11/x
  3. Step 3: Cross multiply
    78,823.41x = 108,776.30 × 50,529.11
  4. Step 4: Simplify right side
    78,823.41x = 5,496,368,831.57
  5. Step 5: Solve for x
    x = 5,496,368,831.57/78,823.41
  6. Step 6: Final answer
    x = 69,730.16

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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.