Home / 92,420.72-127,540.60-49,979.26

Finding the Fourth Proportional to 92,420.72, 127,540.60 and 49,979.26

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Solution

The fourth proportional to 92,420.72, 127,540.60 and 49,979.26 is: 68,971.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,420.72 : 127,540.60 = 49,979.26 : x
  2. Step 2: Convert to fraction form
    92,420.72/127,540.60 = 49,979.26/x
  3. Step 3: Cross multiply
    92,420.72x = 127,540.60 × 49,979.26
  4. Step 4: Simplify right side
    92,420.72x = 6,374,384,807.96
  5. Step 5: Solve for x
    x = 6,374,384,807.96/92,420.72
  6. Step 6: Final answer
    x = 68,971.38

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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.