Home / 91,272.30-125,954.79-50,990.10

Finding the Fourth Proportional to 91,272.30, 125,954.79 and 50,990.10

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Solution

The fourth proportional to 91,272.30, 125,954.79 and 50,990.10 is: 70,365.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,272.30 : 125,954.79 = 50,990.10 : x
  2. Step 2: Convert to fraction form
    91,272.30/125,954.79 = 50,990.10/x
  3. Step 3: Cross multiply
    91,272.30x = 125,954.79 × 50,990.10
  4. Step 4: Simplify right side
    91,272.30x = 6,422,447,337.58
  5. Step 5: Solve for x
    x = 6,422,447,337.58/91,272.30
  6. Step 6: Final answer
    x = 70,365.79

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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.