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Finding the Fourth Proportional to 67,688, 101,567.52 and 27,736.64

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Solution

The fourth proportional to 67,688, 101,567.52 and 27,736.64 is: 41,619.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,688 : 101,567.52 = 27,736.64 : x
  2. Step 2: Convert to fraction form
    67,688/101,567.52 = 27,736.64/x
  3. Step 3: Cross multiply
    67,688x = 101,567.52 × 27,736.64
  4. Step 4: Simplify right side
    67,688x = 2,817,141,737.93
  5. Step 5: Solve for x
    x = 2,817,141,737.93/67,688
  6. Step 6: Final answer
    x = 41,619.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.