Home / 97,917.12-135,128.79-55,474.74

Finding the Fourth Proportional to 97,917.12, 135,128.79 and 55,474.74

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Solution

The fourth proportional to 97,917.12, 135,128.79 and 55,474.74 is: 76,556.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,917.12 : 135,128.79 = 55,474.74 : x
  2. Step 2: Convert to fraction form
    97,917.12/135,128.79 = 55,474.74/x
  3. Step 3: Cross multiply
    97,917.12x = 135,128.79 × 55,474.74
  4. Step 4: Simplify right side
    97,917.12x = 7,496,234,491.76
  5. Step 5: Solve for x
    x = 7,496,234,491.76/97,917.12
  6. Step 6: Final answer
    x = 76,556.93

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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.