Home / 90,629.81-125,071.41-50,341.64

Finding the Fourth Proportional to 90,629.81, 125,071.41 and 50,341.64

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Solution

The fourth proportional to 90,629.81, 125,071.41 and 50,341.64 is: 69,472.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,629.81 : 125,071.41 = 50,341.64 : x
  2. Step 2: Convert to fraction form
    90,629.81/125,071.41 = 50,341.64/x
  3. Step 3: Cross multiply
    90,629.81x = 125,071.41 × 50,341.64
  4. Step 4: Simplify right side
    90,629.81x = 6,296,299,896.51
  5. Step 5: Solve for x
    x = 6,296,299,896.51/90,629.81
  6. Step 6: Final answer
    x = 69,472.73

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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.