Home / 52,413.78-72,331.04-28,540.45

Finding the Fourth Proportional to 52,413.78, 72,331.04 and 28,540.45

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Solution

The fourth proportional to 52,413.78, 72,331.04 and 28,540.45 is: 39,385.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,413.78 : 72,331.04 = 28,540.45 : x
  2. Step 2: Convert to fraction form
    52,413.78/72,331.04 = 28,540.45/x
  3. Step 3: Cross multiply
    52,413.78x = 72,331.04 × 28,540.45
  4. Step 4: Simplify right side
    52,413.78x = 2,064,360,592.33
  5. Step 5: Solve for x
    x = 2,064,360,592.33/52,413.78
  6. Step 6: Final answer
    x = 39,385.83

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1.5x scale

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.