Home / 81,454.50-112,413.69-47,926.98

Finding the Fourth Proportional to 81,454.50, 112,413.69 and 47,926.98

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Solution

The fourth proportional to 81,454.50, 112,413.69 and 47,926.98 is: 66,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,454.50 : 112,413.69 = 47,926.98 : x
  2. Step 2: Convert to fraction form
    81,454.50/112,413.69 = 47,926.98/x
  3. Step 3: Cross multiply
    81,454.50x = 112,413.69 × 47,926.98
  4. Step 4: Simplify right side
    81,454.50x = 5,387,648,672.36
  5. Step 5: Solve for x
    x = 5,387,648,672.36/81,454.50
  6. Step 6: Final answer
    x = 66,143.05

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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.