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Finding the Fourth Proportional to 52,413.65, 72,330.78 and 28,540.49

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Solution

The fourth proportional to 52,413.65, 72,330.78 and 28,540.49 is: 39,385.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,413.65 : 72,330.78 = 28,540.49 : x
  2. Step 2: Convert to fraction form
    52,413.65/72,330.78 = 28,540.49/x
  3. Step 3: Cross multiply
    52,413.65x = 72,330.78 × 28,540.49
  4. Step 4: Simplify right side
    52,413.65x = 2,064,355,541.63
  5. Step 5: Solve for x
    x = 2,064,355,541.63/52,413.65
  6. Step 6: Final answer
    x = 39,385.84

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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.