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Finding the Fourth Proportional to 64,266.50, 96,413.79 and 19,285.94

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Solution

The fourth proportional to 64,266.50, 96,413.79 and 19,285.94 is: 28,933.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,266.50 : 96,413.79 = 19,285.94 : x
  2. Step 2: Convert to fraction form
    64,266.50/96,413.79 = 19,285.94/x
  3. Step 3: Cross multiply
    64,266.50x = 96,413.79 × 19,285.94
  4. Step 4: Simplify right side
    64,266.50x = 1,859,430,569.11
  5. Step 5: Solve for x
    x = 1,859,430,569.11/64,266.50
  6. Step 6: Final answer
    x = 28,933.12

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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.