Home / 74,021.75-102,159.74-42,183.35

Finding the Fourth Proportional to 74,021.75, 102,159.74 and 42,183.35

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Solution

The fourth proportional to 74,021.75, 102,159.74 and 42,183.35 is: 58,218.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,021.75 : 102,159.74 = 42,183.35 : x
  2. Step 2: Convert to fraction form
    74,021.75/102,159.74 = 42,183.35/x
  3. Step 3: Cross multiply
    74,021.75x = 102,159.74 × 42,183.35
  4. Step 4: Simplify right side
    74,021.75x = 4,309,439,662.99
  5. Step 5: Solve for x
    x = 4,309,439,662.99/74,021.75
  6. Step 6: Final answer
    x = 58,218.56

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1.5x scale

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.