Home / 76,947.40-106,189.21-48,268.28

Finding the Fourth Proportional to 76,947.40, 106,189.21 and 48,268.28

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Solution

The fourth proportional to 76,947.40, 106,189.21 and 48,268.28 is: 66,611.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,947.40 : 106,189.21 = 48,268.28 : x
  2. Step 2: Convert to fraction form
    76,947.40/106,189.21 = 48,268.28/x
  3. Step 3: Cross multiply
    76,947.40x = 106,189.21 × 48,268.28
  4. Step 4: Simplify right side
    76,947.40x = 5,125,570,014.44
  5. Step 5: Solve for x
    x = 5,125,570,014.44/76,947.40
  6. Step 6: Final answer
    x = 66,611.35

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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.