Home / 66,965.74-92,415.60-40,103.10

Finding the Fourth Proportional to 66,965.74, 92,415.60 and 40,103.10

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Solution

The fourth proportional to 66,965.74, 92,415.60 and 40,103.10 is: 55,344.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,965.74 : 92,415.60 = 40,103.10 : x
  2. Step 2: Convert to fraction form
    66,965.74/92,415.60 = 40,103.10/x
  3. Step 3: Cross multiply
    66,965.74x = 92,415.60 × 40,103.10
  4. Step 4: Simplify right side
    66,965.74x = 3,706,152,048.36
  5. Step 5: Solve for x
    x = 3,706,152,048.36/66,965.74
  6. Step 6: Final answer
    x = 55,344.00

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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.