Home / 52,413.30-78,619.05-12,970.44

Finding the Fourth Proportional to 52,413.30, 78,619.05 and 12,970.44

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Solution

The fourth proportional to 52,413.30, 78,619.05 and 12,970.44 is: 19,455.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,413.30 : 78,619.05 = 12,970.44 : x
  2. Step 2: Convert to fraction form
    52,413.30/78,619.05 = 12,970.44/x
  3. Step 3: Cross multiply
    52,413.30x = 78,619.05 × 12,970.44
  4. Step 4: Simplify right side
    52,413.30x = 1,019,723,670.88
  5. Step 5: Solve for x
    x = 1,019,723,670.88/52,413.30
  6. Step 6: Final answer
    x = 19,455.44

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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.