Home / 78,813.24-108,762.29-50,518.92

Finding the Fourth Proportional to 78,813.24, 108,762.29 and 50,518.92

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Solution

The fourth proportional to 78,813.24, 108,762.29 and 50,518.92 is: 69,716.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,813.24 : 108,762.29 = 50,518.92 : x
  2. Step 2: Convert to fraction form
    78,813.24/108,762.29 = 50,518.92/x
  3. Step 3: Cross multiply
    78,813.24x = 108,762.29 × 50,518.92
  4. Step 4: Simplify right side
    78,813.24x = 5,494,553,174.93
  5. Step 5: Solve for x
    x = 5,494,553,174.93/78,813.24
  6. Step 6: Final answer
    x = 69,716.12

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1.5x scale

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.