Home / 74,499.24-111,719.70-46,378.20

Finding the Fourth Proportional to 74,499.24, 111,719.70 and 46,378.20

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Solution

The fourth proportional to 74,499.24, 111,719.70 and 46,378.20 is: 69,549.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,499.24 : 111,719.70 = 46,378.20 : x
  2. Step 2: Convert to fraction form
    74,499.24/111,719.70 = 46,378.20/x
  3. Step 3: Cross multiply
    74,499.24x = 111,719.70 × 46,378.20
  4. Step 4: Simplify right side
    74,499.24x = 5,181,358,590.54
  5. Step 5: Solve for x
    x = 5,181,358,590.54/74,499.24
  6. Step 6: Final answer
    x = 69,549.15

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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.