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Finding the Fourth Proportional to 61,250.25, 84,531.83 and 38,894.25

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Solution

The fourth proportional to 61,250.25, 84,531.83 and 38,894.25 is: 53,678.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,250.25 : 84,531.83 = 38,894.25 : x
  2. Step 2: Convert to fraction form
    61,250.25/84,531.83 = 38,894.25/x
  3. Step 3: Cross multiply
    61,250.25x = 84,531.83 × 38,894.25
  4. Step 4: Simplify right side
    61,250.25x = 3,287,801,934.51
  5. Step 5: Solve for x
    x = 3,287,801,934.51/61,250.25
  6. Step 6: Final answer
    x = 53,678.18

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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.