Home / 66,878.37-92,260.35-40,015.44

Finding the Fourth Proportional to 66,878.37, 92,260.35 and 40,015.44

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Solution

The fourth proportional to 66,878.37, 92,260.35 and 40,015.44 is: 55,202.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,878.37 : 92,260.35 = 40,015.44 : x
  2. Step 2: Convert to fraction form
    66,878.37/92,260.35 = 40,015.44/x
  3. Step 3: Cross multiply
    66,878.37x = 92,260.35 × 40,015.44
  4. Step 4: Simplify right side
    66,878.37x = 3,691,838,499.80
  5. Step 5: Solve for x
    x = 3,691,838,499.80/66,878.37
  6. Step 6: Final answer
    x = 55,202.28

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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.