Home / 74,939.33-103,413.06-40,947.28

Finding the Fourth Proportional to 74,939.33, 103,413.06 and 40,947.28

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Solution

The fourth proportional to 74,939.33, 103,413.06 and 40,947.28 is: 56,505.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,939.33 : 103,413.06 = 40,947.28 : x
  2. Step 2: Convert to fraction form
    74,939.33/103,413.06 = 40,947.28/x
  3. Step 3: Cross multiply
    74,939.33x = 103,413.06 × 40,947.28
  4. Step 4: Simplify right side
    74,939.33x = 4,234,483,264.94
  5. Step 5: Solve for x
    x = 4,234,483,264.94/74,939.33
  6. Step 6: Final answer
    x = 56,505.48

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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.