Home / 78,375.08-108,159.75-46,111.97

Finding the Fourth Proportional to 78,375.08, 108,159.75 and 46,111.97

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Solution

The fourth proportional to 78,375.08, 108,159.75 and 46,111.97 is: 63,635.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,375.08 : 108,159.75 = 46,111.97 : x
  2. Step 2: Convert to fraction form
    78,375.08/108,159.75 = 46,111.97/x
  3. Step 3: Cross multiply
    78,375.08x = 108,159.75 × 46,111.97
  4. Step 4: Simplify right side
    78,375.08x = 4,987,459,147.21
  5. Step 5: Solve for x
    x = 4,987,459,147.21/78,375.08
  6. Step 6: Final answer
    x = 63,635.78

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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.