Home / 99,578.17-149,429.54-40,413.84

Finding the Fourth Proportional to 99,578.17, 149,429.54 and 40,413.84

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Solution

The fourth proportional to 99,578.17, 149,429.54 and 40,413.84 is: 60,646.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,578.17 : 149,429.54 = 40,413.84 : x
  2. Step 2: Convert to fraction form
    99,578.17/149,429.54 = 40,413.84/x
  3. Step 3: Cross multiply
    99,578.17x = 149,429.54 × 40,413.84
  4. Step 4: Simplify right side
    99,578.17x = 6,039,021,794.00
  5. Step 5: Solve for x
    x = 6,039,021,794.00/99,578.17
  6. Step 6: Final answer
    x = 60,646.04

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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.