Home / 55,926.09-77,179.32-31,728.69

Finding the Fourth Proportional to 55,926.09, 77,179.32 and 31,728.69

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Solution

The fourth proportional to 55,926.09, 77,179.32 and 31,728.69 is: 43,786.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,926.09 : 77,179.32 = 31,728.69 : x
  2. Step 2: Convert to fraction form
    55,926.09/77,179.32 = 31,728.69/x
  3. Step 3: Cross multiply
    55,926.09x = 77,179.32 × 31,728.69
  4. Step 4: Simplify right side
    55,926.09x = 2,448,798,718.69
  5. Step 5: Solve for x
    x = 2,448,798,718.69/55,926.09
  6. Step 6: Final answer
    x = 43,786.34

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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.