Home / 97,845.86-135,023.51-55,404.50

Finding the Fourth Proportional to 97,845.86, 135,023.51 and 55,404.50

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Solution

The fourth proportional to 97,845.86, 135,023.51 and 55,404.50 is: 76,456.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,845.86 : 135,023.51 = 55,404.50 : x
  2. Step 2: Convert to fraction form
    97,845.86/135,023.51 = 55,404.50/x
  3. Step 3: Cross multiply
    97,845.86x = 135,023.51 × 55,404.50
  4. Step 4: Simplify right side
    97,845.86x = 7,480,909,107.65
  5. Step 5: Solve for x
    x = 7,480,909,107.65/97,845.86
  6. Step 6: Final answer
    x = 76,456.07

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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.