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Finding the Fourth Proportional to 61,137.60, 84,370.75 and 36,935.20

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Solution

The fourth proportional to 61,137.60, 84,370.75 and 36,935.20 is: 50,971.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,137.60 : 84,370.75 = 36,935.20 : x
  2. Step 2: Convert to fraction form
    61,137.60/84,370.75 = 36,935.20/x
  3. Step 3: Cross multiply
    61,137.60x = 84,370.75 × 36,935.20
  4. Step 4: Simplify right side
    61,137.60x = 3,116,250,525.40
  5. Step 5: Solve for x
    x = 3,116,250,525.40/61,137.60
  6. Step 6: Final answer
    x = 50,971.10

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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.