Home / 66,774.30-100,015.65-40,433.10

Finding the Fourth Proportional to 66,774.30, 100,015.65 and 40,433.10

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Solution

The fourth proportional to 66,774.30, 100,015.65 and 40,433.10 is: 60,561.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,774.30 : 100,015.65 = 40,433.10 : x
  2. Step 2: Convert to fraction form
    66,774.30/100,015.65 = 40,433.10/x
  3. Step 3: Cross multiply
    66,774.30x = 100,015.65 × 40,433.10
  4. Step 4: Simplify right side
    66,774.30x = 4,043,942,778.02
  5. Step 5: Solve for x
    x = 4,043,942,778.02/66,774.30
  6. Step 6: Final answer
    x = 60,561.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.