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Finding the Fourth Proportional to 61,362.54, 84,678.84 and 40,141.35

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Solution

The fourth proportional to 61,362.54, 84,678.84 and 40,141.35 is: 55,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,362.54 : 84,678.84 = 40,141.35 : x
  2. Step 2: Convert to fraction form
    61,362.54/84,678.84 = 40,141.35/x
  3. Step 3: Cross multiply
    61,362.54x = 84,678.84 × 40,141.35
  4. Step 4: Simplify right side
    61,362.54x = 3,399,122,954.03
  5. Step 5: Solve for x
    x = 3,399,122,954.03/61,362.54
  6. Step 6: Final answer
    x = 55,394.10

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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.