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Finding the Fourth Proportional to 85,354.25, 117,836.04 and 51,371.07

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Solution

The fourth proportional to 85,354.25, 117,836.04 and 51,371.07 is: 70,920.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,354.25 : 117,836.04 = 51,371.07 : x
  2. Step 2: Convert to fraction form
    85,354.25/117,836.04 = 51,371.07/x
  3. Step 3: Cross multiply
    85,354.25x = 117,836.04 × 51,371.07
  4. Step 4: Simplify right side
    85,354.25x = 6,053,363,202.51
  5. Step 5: Solve for x
    x = 6,053,363,202.51/85,354.25
  6. Step 6: Final answer
    x = 70,920.47

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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.