Home / 90,629.64-125,065.36-50,345.96

Finding the Fourth Proportional to 90,629.64, 125,065.36 and 50,345.96

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Solution

The fourth proportional to 90,629.64, 125,065.36 and 50,345.96 is: 69,475.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,629.64 : 125,065.36 = 50,345.96 : x
  2. Step 2: Convert to fraction form
    90,629.64/125,065.36 = 50,345.96/x
  3. Step 3: Cross multiply
    90,629.64x = 125,065.36 × 50,345.96
  4. Step 4: Simplify right side
    90,629.64x = 6,296,535,611.95
  5. Step 5: Solve for x
    x = 6,296,535,611.95/90,629.64
  6. Step 6: Final answer
    x = 69,475.46

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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.