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Finding the Fourth Proportional to 61,156.50, 91,747.92 and 19,035.69

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Solution

The fourth proportional to 61,156.50, 91,747.92 and 19,035.69 is: 28,557.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,156.50 : 91,747.92 = 19,035.69 : x
  2. Step 2: Convert to fraction form
    61,156.50/91,747.92 = 19,035.69/x
  3. Step 3: Cross multiply
    61,156.50x = 91,747.92 × 19,035.69
  4. Step 4: Simplify right side
    61,156.50x = 1,746,484,963.26
  5. Step 5: Solve for x
    x = 1,746,484,963.26/61,156.50
  6. Step 6: Final answer
    x = 28,557.63

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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.