Home / 98,079.79-135,346.11-55,637.41

Finding the Fourth Proportional to 98,079.79, 135,346.11 and 55,637.41

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Solution

The fourth proportional to 98,079.79, 135,346.11 and 55,637.41 is: 76,777.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,079.79 : 135,346.11 = 55,637.41 : x
  2. Step 2: Convert to fraction form
    98,079.79/135,346.11 = 55,637.41/x
  3. Step 3: Cross multiply
    98,079.79x = 135,346.11 × 55,637.41
  4. Step 4: Simplify right side
    98,079.79x = 7,530,307,013.98
  5. Step 5: Solve for x
    x = 7,530,307,013.98/98,079.79
  6. Step 6: Final answer
    x = 76,777.36

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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.