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Finding the Fourth Proportional to 61,507.87, 84,896.70 and 40,051.17

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Solution

The fourth proportional to 61,507.87, 84,896.70 and 40,051.17 is: 55,280.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,507.87 : 84,896.70 = 40,051.17 : x
  2. Step 2: Convert to fraction form
    61,507.87/84,896.70 = 40,051.17/x
  3. Step 3: Cross multiply
    61,507.87x = 84,896.70 × 40,051.17
  4. Step 4: Simplify right side
    61,507.87x = 3,400,212,164.14
  5. Step 5: Solve for x
    x = 3,400,212,164.14/61,507.87
  6. Step 6: Final answer
    x = 55,280.93

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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.