Home / 76,741.21-105,878.50-43,200.73

Finding the Fourth Proportional to 76,741.21, 105,878.50 and 43,200.73

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Solution

The fourth proportional to 76,741.21, 105,878.50 and 43,200.73 is: 59,603.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,741.21 : 105,878.50 = 43,200.73 : x
  2. Step 2: Convert to fraction form
    76,741.21/105,878.50 = 43,200.73/x
  3. Step 3: Cross multiply
    76,741.21x = 105,878.50 × 43,200.73
  4. Step 4: Simplify right side
    76,741.21x = 4,574,028,491.31
  5. Step 5: Solve for x
    x = 4,574,028,491.31/76,741.21
  6. Step 6: Final answer
    x = 59,603.29

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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.