Home / 74,920.42-103,366.19-53,413.67

Finding the Fourth Proportional to 74,920.42, 103,366.19 and 53,413.67

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Solution

The fourth proportional to 74,920.42, 103,366.19 and 53,413.67 is: 73,693.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,920.42 : 103,366.19 = 53,413.67 : x
  2. Step 2: Convert to fraction form
    74,920.42/103,366.19 = 53,413.67/x
  3. Step 3: Cross multiply
    74,920.42x = 103,366.19 × 53,413.67
  4. Step 4: Simplify right side
    74,920.42x = 5,521,167,561.82
  5. Step 5: Solve for x
    x = 5,521,167,561.82/74,920.42
  6. Step 6: Final answer
    x = 73,693.76

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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.