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Finding the Fourth Proportional to 85,256.80, 117,654.95 and 47,017.71

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Solution

The fourth proportional to 85,256.80, 117,654.95 and 47,017.71 is: 64,884.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,256.80 : 117,654.95 = 47,017.71 : x
  2. Step 2: Convert to fraction form
    85,256.80/117,654.95 = 47,017.71/x
  3. Step 3: Cross multiply
    85,256.80x = 117,654.95 × 47,017.71
  4. Step 4: Simplify right side
    85,256.80x = 5,531,866,436.71
  5. Step 5: Solve for x
    x = 5,531,866,436.71/85,256.80
  6. Step 6: Final answer
    x = 64,884.76

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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.