Home / 85,845.22-118,478.55-47,613.22

Finding the Fourth Proportional to 85,845.22, 118,478.55 and 47,613.22

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Solution

The fourth proportional to 85,845.22, 118,478.55 and 47,613.22 is: 65,712.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,845.22 : 118,478.55 = 47,613.22 : x
  2. Step 2: Convert to fraction form
    85,845.22/118,478.55 = 47,613.22/x
  3. Step 3: Cross multiply
    85,845.22x = 118,478.55 × 47,613.22
  4. Step 4: Simplify right side
    85,845.22x = 5,641,145,266.43
  5. Step 5: Solve for x
    x = 5,641,145,266.43/85,845.22
  6. Step 6: Final answer
    x = 65,712.98

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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.