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Finding the Fourth Proportional to 85,563, 118,072.08 and 47,320.26

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Solution

The fourth proportional to 85,563, 118,072.08 and 47,320.26 is: 65,299.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,563 : 118,072.08 = 47,320.26 : x
  2. Step 2: Convert to fraction form
    85,563/118,072.08 = 47,320.26/x
  3. Step 3: Cross multiply
    85,563x = 118,072.08 × 47,320.26
  4. Step 4: Simplify right side
    85,563x = 5,587,201,524.34
  5. Step 5: Solve for x
    x = 5,587,201,524.34/85,563
  6. Step 6: Final answer
    x = 65,299.27

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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.