Home / 90,669.66-136,027.56-53,261.37

Finding the Fourth Proportional to 90,669.66, 136,027.56 and 53,261.37

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Solution

The fourth proportional to 90,669.66, 136,027.56 and 53,261.37 is: 79,905.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,669.66 : 136,027.56 = 53,261.37 : x
  2. Step 2: Convert to fraction form
    90,669.66/136,027.56 = 53,261.37/x
  3. Step 3: Cross multiply
    90,669.66x = 136,027.56 × 53,261.37
  4. Step 4: Simplify right side
    90,669.66x = 7,245,014,203.36
  5. Step 5: Solve for x
    x = 7,245,014,203.36/90,669.66
  6. Step 6: Final answer
    x = 79,905.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.