Home / 78,468.48-108,286.20-46,221.84

Finding the Fourth Proportional to 78,468.48, 108,286.20 and 46,221.84

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Solution

The fourth proportional to 78,468.48, 108,286.20 and 46,221.84 is: 63,785.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,468.48 : 108,286.20 = 46,221.84 : x
  2. Step 2: Convert to fraction form
    78,468.48/108,286.20 = 46,221.84/x
  3. Step 3: Cross multiply
    78,468.48x = 108,286.20 × 46,221.84
  4. Step 4: Simplify right side
    78,468.48x = 5,005,187,410.61
  5. Step 5: Solve for x
    x = 5,005,187,410.61/78,468.48
  6. Step 6: Final answer
    x = 63,785.96

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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.