Home / 85,968.28-128,785.56-48,413.80

Finding the Fourth Proportional to 85,968.28, 128,785.56 and 48,413.80

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Solution

The fourth proportional to 85,968.28, 128,785.56 and 48,413.80 is: 72,526.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,968.28 : 128,785.56 = 48,413.80 : x
  2. Step 2: Convert to fraction form
    85,968.28/128,785.56 = 48,413.80/x
  3. Step 3: Cross multiply
    85,968.28x = 128,785.56 × 48,413.80
  4. Step 4: Simplify right side
    85,968.28x = 6,234,998,344.73
  5. Step 5: Solve for x
    x = 6,234,998,344.73/85,968.28
  6. Step 6: Final answer
    x = 72,526.73

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1.5x scale

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.