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Finding the Fourth Proportional to 66,885.69, 92,303.30 and 40,029.33

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Solution

The fourth proportional to 66,885.69, 92,303.30 and 40,029.33 is: 55,241.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,885.69 : 92,303.30 = 40,029.33 : x
  2. Step 2: Convert to fraction form
    66,885.69/92,303.30 = 40,029.33/x
  3. Step 3: Cross multiply
    66,885.69x = 92,303.30 × 40,029.33
  4. Step 4: Simplify right side
    66,885.69x = 3,694,839,255.79
  5. Step 5: Solve for x
    x = 3,694,839,255.79/66,885.69
  6. Step 6: Final answer
    x = 55,241.10

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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.