Home / 55,155.74-82,718.21-19,612.53

Finding the Fourth Proportional to 55,155.74, 82,718.21 and 19,612.53

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Solution

The fourth proportional to 55,155.74, 82,718.21 and 19,612.53 is: 29,413.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,155.74 : 82,718.21 = 19,612.53 : x
  2. Step 2: Convert to fraction form
    55,155.74/82,718.21 = 19,612.53/x
  3. Step 3: Cross multiply
    55,155.74x = 82,718.21 × 19,612.53
  4. Step 4: Simplify right side
    55,155.74x = 1,622,313,424.20
  5. Step 5: Solve for x
    x = 1,622,313,424.20/55,155.74
  6. Step 6: Final answer
    x = 29,413.32

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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.