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Finding the Fourth Proportional to 61,937, 85,474.62 and 33,642.68

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Solution

The fourth proportional to 61,937, 85,474.62 and 33,642.68 is: 46,427.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,937 : 85,474.62 = 33,642.68 : x
  2. Step 2: Convert to fraction form
    61,937/85,474.62 = 33,642.68/x
  3. Step 3: Cross multiply
    61,937x = 85,474.62 × 33,642.68
  4. Step 4: Simplify right side
    61,937x = 2,875,595,288.78
  5. Step 5: Solve for x
    x = 2,875,595,288.78/61,937
  6. Step 6: Final answer
    x = 46,427.75

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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.