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Finding the Fourth Proportional to 90,958, 125,530.53 and 53,232.28

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Solution

The fourth proportional to 90,958, 125,530.53 and 53,232.28 is: 73,465.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,958 : 125,530.53 = 53,232.28 : x
  2. Step 2: Convert to fraction form
    90,958/125,530.53 = 53,232.28/x
  3. Step 3: Cross multiply
    90,958x = 125,530.53 × 53,232.28
  4. Step 4: Simplify right side
    90,958x = 6,682,276,321.51
  5. Step 5: Solve for x
    x = 6,682,276,321.51/90,958
  6. Step 6: Final answer
    x = 73,465.52

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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.