Home / 91,012.56-125,603.64-55,204.08

Finding the Fourth Proportional to 91,012.56, 125,603.64 and 55,204.08

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Solution

The fourth proportional to 91,012.56, 125,603.64 and 55,204.08 is: 76,185.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,012.56 : 125,603.64 = 55,204.08 : x
  2. Step 2: Convert to fraction form
    91,012.56/125,603.64 = 55,204.08/x
  3. Step 3: Cross multiply
    91,012.56x = 125,603.64 × 55,204.08
  4. Step 4: Simplify right side
    91,012.56x = 6,933,833,390.85
  5. Step 5: Solve for x
    x = 6,933,833,390.85/91,012.56
  6. Step 6: Final answer
    x = 76,185.46

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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.