Home / 90,713.46-125,185.29-49,878.36

Finding the Fourth Proportional to 90,713.46, 125,185.29 and 49,878.36

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Solution

The fourth proportional to 90,713.46, 125,185.29 and 49,878.36 is: 68,832.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,713.46 : 125,185.29 = 49,878.36 : x
  2. Step 2: Convert to fraction form
    90,713.46/125,185.29 = 49,878.36/x
  3. Step 3: Cross multiply
    90,713.46x = 125,185.29 × 49,878.36
  4. Step 4: Simplify right side
    90,713.46x = 6,244,036,961.32
  5. Step 5: Solve for x
    x = 6,244,036,961.32/90,713.46
  6. Step 6: Final answer
    x = 68,832.53

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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.