Home / 74,202.38-102,372.42-45,120.74

Finding the Fourth Proportional to 74,202.38, 102,372.42 and 45,120.74

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Solution

The fourth proportional to 74,202.38, 102,372.42 and 45,120.74 is: 62,250.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,202.38 : 102,372.42 = 45,120.74 : x
  2. Step 2: Convert to fraction form
    74,202.38/102,372.42 = 45,120.74/x
  3. Step 3: Cross multiply
    74,202.38x = 102,372.42 × 45,120.74
  4. Step 4: Simplify right side
    74,202.38x = 4,619,119,345.99
  5. Step 5: Solve for x
    x = 4,619,119,345.99/74,202.38
  6. Step 6: Final answer
    x = 62,250.29

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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.