Home / 85,099.17-117,413.22-54,885.78

Finding the Fourth Proportional to 85,099.17, 117,413.22 and 54,885.78

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Solution

The fourth proportional to 85,099.17, 117,413.22 and 54,885.78 is: 75,727.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,099.17 : 117,413.22 = 54,885.78 : x
  2. Step 2: Convert to fraction form
    85,099.17/117,413.22 = 54,885.78/x
  3. Step 3: Cross multiply
    85,099.17x = 117,413.22 × 54,885.78
  4. Step 4: Simplify right side
    85,099.17x = 6,444,316,162.01
  5. Step 5: Solve for x
    x = 6,444,316,162.01/85,099.17
  6. Step 6: Final answer
    x = 75,727.13

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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.