Home / 98,112.60-135,396.31-55,667.79

Finding the Fourth Proportional to 98,112.60, 135,396.31 and 55,667.79

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Solution

The fourth proportional to 98,112.60, 135,396.31 and 55,667.79 is: 76,822.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,112.60 : 135,396.31 = 55,667.79 : x
  2. Step 2: Convert to fraction form
    98,112.60/135,396.31 = 55,667.79/x
  3. Step 3: Cross multiply
    98,112.60x = 135,396.31 × 55,667.79
  4. Step 4: Simplify right side
    98,112.60x = 7,537,213,212.69
  5. Step 5: Solve for x
    x = 7,537,213,212.69/98,112.60
  6. Step 6: Final answer
    x = 76,822.07

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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.