Home / 90,155.85-124,413.54-49,869.58

Finding the Fourth Proportional to 90,155.85, 124,413.54 and 49,869.58

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Solution

The fourth proportional to 90,155.85, 124,413.54 and 49,869.58 is: 68,819.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,155.85 : 124,413.54 = 49,869.58 : x
  2. Step 2: Convert to fraction form
    90,155.85/124,413.54 = 49,869.58/x
  3. Step 3: Cross multiply
    90,155.85x = 124,413.54 × 49,869.58
  4. Step 4: Simplify right side
    90,155.85x = 6,204,450,736.77
  5. Step 5: Solve for x
    x = 6,204,450,736.77/90,155.85
  6. Step 6: Final answer
    x = 68,819.17

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1.5x scale

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.