Home / 92,419.72-127,539.22-49,978.25

Finding the Fourth Proportional to 92,419.72, 127,539.22 and 49,978.25

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Solution

The fourth proportional to 92,419.72, 127,539.22 and 49,978.25 is: 68,969.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,419.72 : 127,539.22 = 49,978.25 : x
  2. Step 2: Convert to fraction form
    92,419.72/127,539.22 = 49,978.25/x
  3. Step 3: Cross multiply
    92,419.72x = 127,539.22 × 49,978.25
  4. Step 4: Simplify right side
    92,419.72x = 6,374,187,021.97
  5. Step 5: Solve for x
    x = 6,374,187,021.97/92,419.72
  6. Step 6: Final answer
    x = 68,969.99

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1.5x scale

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.