Home / 43,385.44-65,078.50-28,405.17

Finding the Fourth Proportional to 43,385.44, 65,078.50 and 28,405.17

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Solution

The fourth proportional to 43,385.44, 65,078.50 and 28,405.17 is: 42,607.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,385.44 : 65,078.50 = 28,405.17 : x
  2. Step 2: Convert to fraction form
    43,385.44/65,078.50 = 28,405.17/x
  3. Step 3: Cross multiply
    43,385.44x = 65,078.50 × 28,405.17
  4. Step 4: Simplify right side
    43,385.44x = 1,848,565,855.85
  5. Step 5: Solve for x
    x = 1,848,565,855.85/43,385.44
  6. Step 6: Final answer
    x = 42,607.98

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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.