Home / 74,345.10-111,433.38-36,858.30

Finding the Fourth Proportional to 74,345.10, 111,433.38 and 36,858.30

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Solution

The fourth proportional to 74,345.10, 111,433.38 and 36,858.30 is: 55,245.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,345.10 : 111,433.38 = 36,858.30 : x
  2. Step 2: Convert to fraction form
    74,345.10/111,433.38 = 36,858.30/x
  3. Step 3: Cross multiply
    74,345.10x = 111,433.38 × 36,858.30
  4. Step 4: Simplify right side
    74,345.10x = 4,107,244,950.05
  5. Step 5: Solve for x
    x = 4,107,244,950.05/74,345.10
  6. Step 6: Final answer
    x = 55,245.67

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1.5x scale

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.