Home / 85,845.05-118,467.61-47,606.21

Finding the Fourth Proportional to 85,845.05, 118,467.61 and 47,606.21

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Solution

The fourth proportional to 85,845.05, 118,467.61 and 47,606.21 is: 65,697.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,845.05 : 118,467.61 = 47,606.21 : x
  2. Step 2: Convert to fraction form
    85,845.05/118,467.61 = 47,606.21/x
  3. Step 3: Cross multiply
    85,845.05x = 118,467.61 × 47,606.21
  4. Step 4: Simplify right side
    85,845.05x = 5,639,793,919.86
  5. Step 5: Solve for x
    x = 5,639,793,919.86/85,845.05
  6. Step 6: Final answer
    x = 65,697.37

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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.