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Finding the Fourth Proportional to 61,378.76, 92,069.37 and 19,257.95

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Solution

The fourth proportional to 61,378.76, 92,069.37 and 19,257.95 is: 28,887.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,378.76 : 92,069.37 = 19,257.95 : x
  2. Step 2: Convert to fraction form
    61,378.76/92,069.37 = 19,257.95/x
  3. Step 3: Cross multiply
    61,378.76x = 92,069.37 × 19,257.95
  4. Step 4: Simplify right side
    61,378.76x = 1,773,067,323.99
  5. Step 5: Solve for x
    x = 1,773,067,323.99/61,378.76
  6. Step 6: Final answer
    x = 28,887.31

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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.