Home / 77,999.28-107,645.13-46,185.72

Finding the Fourth Proportional to 77,999.28, 107,645.13 and 46,185.72

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Solution

The fourth proportional to 77,999.28, 107,645.13 and 46,185.72 is: 63,739.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,999.28 : 107,645.13 = 46,185.72 : x
  2. Step 2: Convert to fraction form
    77,999.28/107,645.13 = 46,185.72/x
  3. Step 3: Cross multiply
    77,999.28x = 107,645.13 × 46,185.72
  4. Step 4: Simplify right side
    77,999.28x = 4,971,667,833.54
  5. Step 5: Solve for x
    x = 4,971,667,833.54/77,999.28
  6. Step 6: Final answer
    x = 63,739.92

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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.