Home / 66,114-91,242.18-40,968.36

Finding the Fourth Proportional to 66,114, 91,242.18 and 40,968.36

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Solution

The fourth proportional to 66,114, 91,242.18 and 40,968.36 is: 56,539.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,114 : 91,242.18 = 40,968.36 : x
  2. Step 2: Convert to fraction form
    66,114/91,242.18 = 40,968.36/x
  3. Step 3: Cross multiply
    66,114x = 91,242.18 × 40,968.36
  4. Step 4: Simplify right side
    66,114x = 3,738,042,477.42
  5. Step 5: Solve for x
    x = 3,738,042,477.42/66,114
  6. Step 6: Final answer
    x = 56,539.35

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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.