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Finding the Fourth Proportional to 74,687.00, 103,066.63 and 40,695.08

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Solution

The fourth proportional to 74,687.00, 103,066.63 and 40,695.08 is: 56,158.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,687.00 : 103,066.63 = 40,695.08 : x
  2. Step 2: Convert to fraction form
    74,687.00/103,066.63 = 40,695.08/x
  3. Step 3: Cross multiply
    74,687.00x = 103,066.63 × 40,695.08
  4. Step 4: Simplify right side
    74,687.00x = 4,194,304,136.11
  5. Step 5: Solve for x
    x = 4,194,304,136.11/74,687.00
  6. Step 6: Final answer
    x = 56,158.43

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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.