Home / 72,764.29-100,413.67-40,933.18

Finding the Fourth Proportional to 72,764.29, 100,413.67 and 40,933.18

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Solution

The fourth proportional to 72,764.29, 100,413.67 and 40,933.18 is: 56,487.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,764.29 : 100,413.67 = 40,933.18 : x
  2. Step 2: Convert to fraction form
    72,764.29/100,413.67 = 40,933.18/x
  3. Step 3: Cross multiply
    72,764.29x = 100,413.67 × 40,933.18
  4. Step 4: Simplify right side
    72,764.29x = 4,110,250,828.57
  5. Step 5: Solve for x
    x = 4,110,250,828.57/72,764.29
  6. Step 6: Final answer
    x = 56,487.20

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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.