Home / 90,413.05-124,777.40-50,139.45

Finding the Fourth Proportional to 90,413.05, 124,777.40 and 50,139.45

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Solution

The fourth proportional to 90,413.05, 124,777.40 and 50,139.45 is: 69,196.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,413.05 : 124,777.40 = 50,139.45 : x
  2. Step 2: Convert to fraction form
    90,413.05/124,777.40 = 50,139.45/x
  3. Step 3: Cross multiply
    90,413.05x = 124,777.40 × 50,139.45
  4. Step 4: Simplify right side
    90,413.05x = 6,256,270,208.43
  5. Step 5: Solve for x
    x = 6,256,270,208.43/90,413.05
  6. Step 6: Final answer
    x = 69,196.54

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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.