Home / 100,417.52-138,571.50-55,094.48

Finding the Fourth Proportional to 100,417.52, 138,571.50 and 55,094.48

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Solution

The fourth proportional to 100,417.52, 138,571.50 and 55,094.48 is: 76,027.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,417.52 : 138,571.50 = 55,094.48 : x
  2. Step 2: Convert to fraction form
    100,417.52/138,571.50 = 55,094.48/x
  3. Step 3: Cross multiply
    100,417.52x = 138,571.50 × 55,094.48
  4. Step 4: Simplify right side
    100,417.52x = 7,634,524,735.32
  5. Step 5: Solve for x
    x = 7,634,524,735.32/100,417.52
  6. Step 6: Final answer
    x = 76,027.82

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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.