Home / 77,054.58-115,615.26-27,170.31

Finding the Fourth Proportional to 77,054.58, 115,615.26 and 27,170.31

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Solution

The fourth proportional to 77,054.58, 115,615.26 and 27,170.31 is: 40,767.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,054.58 : 115,615.26 = 27,170.31 : x
  2. Step 2: Convert to fraction form
    77,054.58/115,615.26 = 27,170.31/x
  3. Step 3: Cross multiply
    77,054.58x = 115,615.26 × 27,170.31
  4. Step 4: Simplify right side
    77,054.58x = 3,141,302,454.93
  5. Step 5: Solve for x
    x = 3,141,302,454.93/77,054.58
  6. Step 6: Final answer
    x = 40,767.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.