Home / 45,740.40-68,413.80-40,710.36

Finding the Fourth Proportional to 45,740.40, 68,413.80 and 40,710.36

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Solution

The fourth proportional to 45,740.40, 68,413.80 and 40,710.36 is: 60,890.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,740.40 : 68,413.80 = 40,710.36 : x
  2. Step 2: Convert to fraction form
    45,740.40/68,413.80 = 40,710.36/x
  3. Step 3: Cross multiply
    45,740.40x = 68,413.80 × 40,710.36
  4. Step 4: Simplify right side
    45,740.40x = 2,785,150,426.97
  5. Step 5: Solve for x
    x = 2,785,150,426.97/45,740.40
  6. Step 6: Final answer
    x = 60,890.38

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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.