Home / 78,279.26-108,025.99-46,005.21

Finding the Fourth Proportional to 78,279.26, 108,025.99 and 46,005.21

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Solution

The fourth proportional to 78,279.26, 108,025.99 and 46,005.21 is: 63,487.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,279.26 : 108,025.99 = 46,005.21 : x
  2. Step 2: Convert to fraction form
    78,279.26/108,025.99 = 46,005.21/x
  3. Step 3: Cross multiply
    78,279.26x = 108,025.99 × 46,005.21
  4. Step 4: Simplify right side
    78,279.26x = 4,969,758,240.39
  5. Step 5: Solve for x
    x = 4,969,758,240.39/78,279.26
  6. Step 6: Final answer
    x = 63,487.55

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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.