Home / 74,159.30-111,278.18-40,449.67

Finding the Fourth Proportional to 74,159.30, 111,278.18 and 40,449.67

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Solution

The fourth proportional to 74,159.30, 111,278.18 and 40,449.67 is: 60,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,159.30 : 111,278.18 = 40,449.67 : x
  2. Step 2: Convert to fraction form
    74,159.30/111,278.18 = 40,449.67/x
  3. Step 3: Cross multiply
    74,159.30x = 111,278.18 × 40,449.67
  4. Step 4: Simplify right side
    74,159.30x = 4,501,165,482.13
  5. Step 5: Solve for x
    x = 4,501,165,482.13/74,159.30
  6. Step 6: Final answer
    x = 60,695.90

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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.