Home / 76,138.58-114,338.55-46,729.10

Finding the Fourth Proportional to 76,138.58, 114,338.55 and 46,729.10

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Solution

The fourth proportional to 76,138.58, 114,338.55 and 46,729.10 is: 70,173.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,138.58 : 114,338.55 = 46,729.10 : x
  2. Step 2: Convert to fraction form
    76,138.58/114,338.55 = 46,729.10/x
  3. Step 3: Cross multiply
    76,138.58x = 114,338.55 × 46,729.10
  4. Step 4: Simplify right side
    76,138.58x = 5,342,937,536.81
  5. Step 5: Solve for x
    x = 5,342,937,536.81/76,138.58
  6. Step 6: Final answer
    x = 70,173.85

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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.