Home / 66,977.44-92,413.36-40,109.76

Finding the Fourth Proportional to 66,977.44, 92,413.36 and 40,109.76

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Solution

The fourth proportional to 66,977.44, 92,413.36 and 40,109.76 is: 55,342.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,977.44 : 92,413.36 = 40,109.76 : x
  2. Step 2: Convert to fraction form
    66,977.44/92,413.36 = 40,109.76/x
  3. Step 3: Cross multiply
    66,977.44x = 92,413.36 × 40,109.76
  4. Step 4: Simplify right side
    66,977.44x = 3,706,677,690.39
  5. Step 5: Solve for x
    x = 3,706,677,690.39/66,977.44
  6. Step 6: Final answer
    x = 55,342.18

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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.