Home / 74,012.40-102,138.19-41,748.56

Finding the Fourth Proportional to 74,012.40, 102,138.19 and 41,748.56

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Solution

The fourth proportional to 74,012.40, 102,138.19 and 41,748.56 is: 57,613.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,012.40 : 102,138.19 = 41,748.56 : x
  2. Step 2: Convert to fraction form
    74,012.40/102,138.19 = 41,748.56/x
  3. Step 3: Cross multiply
    74,012.40x = 102,138.19 × 41,748.56
  4. Step 4: Simplify right side
    74,012.40x = 4,264,122,121.46
  5. Step 5: Solve for x
    x = 4,264,122,121.46/74,012.40
  6. Step 6: Final answer
    x = 57,613.62

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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.