Home / 85,308.21-117,726.54-47,069.43

Finding the Fourth Proportional to 85,308.21, 117,726.54 and 47,069.43

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Solution

The fourth proportional to 85,308.21, 117,726.54 and 47,069.43 is: 64,956.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,308.21 : 117,726.54 = 47,069.43 : x
  2. Step 2: Convert to fraction form
    85,308.21/117,726.54 = 47,069.43/x
  3. Step 3: Cross multiply
    85,308.21x = 117,726.54 × 47,069.43
  4. Step 4: Simplify right side
    85,308.21x = 5,541,321,133.67
  5. Step 5: Solve for x
    x = 5,541,321,133.67/85,308.21
  6. Step 6: Final answer
    x = 64,956.48

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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.