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Finding the Fourth Proportional to 85,476.64, 117,958.08 and 47,751.52

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Solution

The fourth proportional to 85,476.64, 117,958.08 and 47,751.52 is: 65,897.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,476.64 : 117,958.08 = 47,751.52 : x
  2. Step 2: Convert to fraction form
    85,476.64/117,958.08 = 47,751.52/x
  3. Step 3: Cross multiply
    85,476.64x = 117,958.08 × 47,751.52
  4. Step 4: Simplify right side
    85,476.64x = 5,632,677,616.28
  5. Step 5: Solve for x
    x = 5,632,677,616.28/85,476.64
  6. Step 6: Final answer
    x = 65,897.27

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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.