Home / 66,928.80-92,364.64-40,066.12

Finding the Fourth Proportional to 66,928.80, 92,364.64 and 40,066.12

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Solution

The fourth proportional to 66,928.80, 92,364.64 and 40,066.12 is: 55,292.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,928.80 : 92,364.64 = 40,066.12 : x
  2. Step 2: Convert to fraction form
    66,928.80/92,364.64 = 40,066.12/x
  3. Step 3: Cross multiply
    66,928.80x = 92,364.64 × 40,066.12
  4. Step 4: Simplify right side
    66,928.80x = 3,700,692,750.00
  5. Step 5: Solve for x
    x = 3,700,692,750.00/66,928.80
  6. Step 6: Final answer
    x = 55,292.98

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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.