Home / 90,203.44-124,530.80-54,402.52

Finding the Fourth Proportional to 90,203.44, 124,530.80 and 54,402.52

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Solution

The fourth proportional to 90,203.44, 124,530.80 and 54,402.52 is: 75,105.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,203.44 : 124,530.80 = 54,402.52 : x
  2. Step 2: Convert to fraction form
    90,203.44/124,530.80 = 54,402.52/x
  3. Step 3: Cross multiply
    90,203.44x = 124,530.80 × 54,402.52
  4. Step 4: Simplify right side
    90,203.44x = 6,774,789,337.62
  5. Step 5: Solve for x
    x = 6,774,789,337.62/90,203.44
  6. Step 6: Final answer
    x = 75,105.66

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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.