Home / 76,975.12-106,201.56-45,145.36

Finding the Fourth Proportional to 76,975.12, 106,201.56 and 45,145.36

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Solution

The fourth proportional to 76,975.12, 106,201.56 and 45,145.36 is: 62,286.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,975.12 : 106,201.56 = 45,145.36 : x
  2. Step 2: Convert to fraction form
    76,975.12/106,201.56 = 45,145.36/x
  3. Step 3: Cross multiply
    76,975.12x = 106,201.56 × 45,145.36
  4. Step 4: Simplify right side
    76,975.12x = 4,794,507,658.76
  5. Step 5: Solve for x
    x = 4,794,507,658.76/76,975.12
  6. Step 6: Final answer
    x = 62,286.46

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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.