Home / 88,003.10-121,399.56-55,683.25

Finding the Fourth Proportional to 88,003.10, 121,399.56 and 55,683.25

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Solution

The fourth proportional to 88,003.10, 121,399.56 and 55,683.25 is: 76,814.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,003.10 : 121,399.56 = 55,683.25 : x
  2. Step 2: Convert to fraction form
    88,003.10/121,399.56 = 55,683.25/x
  3. Step 3: Cross multiply
    88,003.10x = 121,399.56 × 55,683.25
  4. Step 4: Simplify right side
    88,003.10x = 6,759,921,745.87
  5. Step 5: Solve for x
    x = 6,759,921,745.87/88,003.10
  6. Step 6: Final answer
    x = 76,814.58

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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.