Home / 90,860.31-125,380.98-56,867.37

Finding the Fourth Proportional to 90,860.31, 125,380.98 and 56,867.37

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Solution

The fourth proportional to 90,860.31, 125,380.98 and 56,867.37 is: 78,473.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,860.31 : 125,380.98 = 56,867.37 : x
  2. Step 2: Convert to fraction form
    90,860.31/125,380.98 = 56,867.37/x
  3. Step 3: Cross multiply
    90,860.31x = 125,380.98 × 56,867.37
  4. Step 4: Simplify right side
    90,860.31x = 7,130,086,580.62
  5. Step 5: Solve for x
    x = 7,130,086,580.62/90,860.31
  6. Step 6: Final answer
    x = 78,473.06

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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.