Home / 45,413.93-68,076.70-21,715.32

Finding the Fourth Proportional to 45,413.93, 68,076.70 and 21,715.32

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Solution

The fourth proportional to 45,413.93, 68,076.70 and 21,715.32 is: 32,551.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,413.93 : 68,076.70 = 21,715.32 : x
  2. Step 2: Convert to fraction form
    45,413.93/68,076.70 = 21,715.32/x
  3. Step 3: Cross multiply
    45,413.93x = 68,076.70 × 21,715.32
  4. Step 4: Simplify right side
    45,413.93x = 1,478,307,648.19
  5. Step 5: Solve for x
    x = 1,478,307,648.19/45,413.93
  6. Step 6: Final answer
    x = 32,551.86

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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.