Home / 91,107.06-125,728.69-50,824.50

Finding the Fourth Proportional to 91,107.06, 125,728.69 and 50,824.50

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Solution

The fourth proportional to 91,107.06, 125,728.69 and 50,824.50 is: 70,138.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,107.06 : 125,728.69 = 50,824.50 : x
  2. Step 2: Convert to fraction form
    91,107.06/125,728.69 = 50,824.50/x
  3. Step 3: Cross multiply
    91,107.06x = 125,728.69 × 50,824.50
  4. Step 4: Simplify right side
    91,107.06x = 6,390,097,804.91
  5. Step 5: Solve for x
    x = 6,390,097,804.91/91,107.06
  6. Step 6: Final answer
    x = 70,138.34

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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.