Home / 90,155.54-124,413.11-49,869.27

Finding the Fourth Proportional to 90,155.54, 124,413.11 and 49,869.27

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Solution

The fourth proportional to 90,155.54, 124,413.11 and 49,869.27 is: 68,818.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,155.54 : 124,413.11 = 49,869.27 : x
  2. Step 2: Convert to fraction form
    90,155.54/124,413.11 = 49,869.27/x
  3. Step 3: Cross multiply
    90,155.54x = 124,413.11 × 49,869.27
  4. Step 4: Simplify right side
    90,155.54x = 6,204,390,258.23
  5. Step 5: Solve for x
    x = 6,204,390,258.23/90,155.54
  6. Step 6: Final answer
    x = 68,818.74

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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.