Home / 90,456.54-135,463.37-63,736.86

Finding the Fourth Proportional to 90,456.54, 135,463.37 and 63,736.86

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Solution

The fourth proportional to 90,456.54, 135,463.37 and 63,736.86 is: 95,449.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,456.54 : 135,463.37 = 63,736.86 : x
  2. Step 2: Convert to fraction form
    90,456.54/135,463.37 = 63,736.86/x
  3. Step 3: Cross multiply
    90,456.54x = 135,463.37 × 63,736.86
  4. Step 4: Simplify right side
    90,456.54x = 8,634,009,848.82
  5. Step 5: Solve for x
    x = 8,634,009,848.82/90,456.54
  6. Step 6: Final answer
    x = 95,449.26

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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.