Home / 90,629.80-125,064.78-50,346.16

Finding the Fourth Proportional to 90,629.80, 125,064.78 and 50,346.16

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Solution

The fourth proportional to 90,629.80, 125,064.78 and 50,346.16 is: 69,475.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,629.80 : 125,064.78 = 50,346.16 : x
  2. Step 2: Convert to fraction form
    90,629.80/125,064.78 = 50,346.16/x
  3. Step 3: Cross multiply
    90,629.80x = 125,064.78 × 50,346.16
  4. Step 4: Simplify right side
    90,629.80x = 6,296,531,424.24
  5. Step 5: Solve for x
    x = 6,296,531,424.24/90,629.80
  6. Step 6: Final answer
    x = 69,475.29

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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.