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Finding the Fourth Proportional to 74,462.88, 111,694.08 and 30,089.10

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Solution

The fourth proportional to 74,462.88, 111,694.08 and 30,089.10 is: 45,133.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,462.88 : 111,694.08 = 30,089.10 : x
  2. Step 2: Convert to fraction form
    74,462.88/111,694.08 = 30,089.10/x
  3. Step 3: Cross multiply
    74,462.88x = 111,694.08 × 30,089.10
  4. Step 4: Simplify right side
    74,462.88x = 3,360,774,342.53
  5. Step 5: Solve for x
    x = 3,360,774,342.53/74,462.88
  6. Step 6: Final answer
    x = 45,133.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.