Home / 66,638.60-99,908.52-40,337.12

Finding the Fourth Proportional to 66,638.60, 99,908.52 and 40,337.12

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Solution

The fourth proportional to 66,638.60, 99,908.52 and 40,337.12 is: 60,475.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,638.60 : 99,908.52 = 40,337.12 : x
  2. Step 2: Convert to fraction form
    66,638.60/99,908.52 = 40,337.12/x
  3. Step 3: Cross multiply
    66,638.60x = 99,908.52 × 40,337.12
  4. Step 4: Simplify right side
    66,638.60x = 4,030,022,361.30
  5. Step 5: Solve for x
    x = 4,030,022,361.30/66,638.60
  6. Step 6: Final answer
    x = 60,475.79

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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.