Home / 74,114.46-102,287.61-42,289.56

Finding the Fourth Proportional to 74,114.46, 102,287.61 and 42,289.56

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Solution

The fourth proportional to 74,114.46, 102,287.61 and 42,289.56 is: 58,365.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,114.46 : 102,287.61 = 42,289.56 : x
  2. Step 2: Convert to fraction form
    74,114.46/102,287.61 = 42,289.56/x
  3. Step 3: Cross multiply
    74,114.46x = 102,287.61 × 42,289.56
  4. Step 4: Simplify right side
    74,114.46x = 4,325,698,020.35
  5. Step 5: Solve for x
    x = 4,325,698,020.35/74,114.46
  6. Step 6: Final answer
    x = 58,365.10

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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.