Home / 66,733.12-100,099.60-40,445.36

Finding the Fourth Proportional to 66,733.12, 100,099.60 and 40,445.36

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Solution

The fourth proportional to 66,733.12, 100,099.60 and 40,445.36 is: 60,667.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,733.12 : 100,099.60 = 40,445.36 : x
  2. Step 2: Convert to fraction form
    66,733.12/100,099.60 = 40,445.36/x
  3. Step 3: Cross multiply
    66,733.12x = 100,099.60 × 40,445.36
  4. Step 4: Simplify right side
    66,733.12x = 4,048,564,357.86
  5. Step 5: Solve for x
    x = 4,048,564,357.86/66,733.12
  6. Step 6: Final answer
    x = 60,667.99

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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.