Home / 49,739.88-68,642.16-28,231.06

Finding the Fourth Proportional to 49,739.88, 68,642.16 and 28,231.06

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Solution

The fourth proportional to 49,739.88, 68,642.16 and 28,231.06 is: 38,959.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,739.88 : 68,642.16 = 28,231.06 : x
  2. Step 2: Convert to fraction form
    49,739.88/68,642.16 = 28,231.06/x
  3. Step 3: Cross multiply
    49,739.88x = 68,642.16 × 28,231.06
  4. Step 4: Simplify right side
    49,739.88x = 1,937,840,937.49
  5. Step 5: Solve for x
    x = 1,937,840,937.49/49,739.88
  6. Step 6: Final answer
    x = 38,959.50

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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.