Home / 90,413.30-124,777.75-50,139.70

Finding the Fourth Proportional to 90,413.30, 124,777.75 and 50,139.70

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Solution

The fourth proportional to 90,413.30, 124,777.75 and 50,139.70 is: 69,196.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,413.30 : 124,777.75 = 50,139.70 : x
  2. Step 2: Convert to fraction form
    90,413.30/124,777.75 = 50,139.70/x
  3. Step 3: Cross multiply
    90,413.30x = 124,777.75 × 50,139.70
  4. Step 4: Simplify right side
    90,413.30x = 6,256,318,951.68
  5. Step 5: Solve for x
    x = 6,256,318,951.68/90,413.30
  6. Step 6: Final answer
    x = 69,196.89

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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.