Home / 85,299.89-117,663.03-53,413.43

Finding the Fourth Proportional to 85,299.89, 117,663.03 and 53,413.43

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Solution

The fourth proportional to 85,299.89, 117,663.03 and 53,413.43 is: 73,678.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,299.89 : 117,663.03 = 53,413.43 : x
  2. Step 2: Convert to fraction form
    85,299.89/117,663.03 = 53,413.43/x
  3. Step 3: Cross multiply
    85,299.89x = 117,663.03 × 53,413.43
  4. Step 4: Simplify right side
    85,299.89x = 6,284,785,428.18
  5. Step 5: Solve for x
    x = 6,284,785,428.18/85,299.89
  6. Step 6: Final answer
    x = 73,678.71

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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.