Home / 52,046.28-78,069.06-12,603.60

Finding the Fourth Proportional to 52,046.28, 78,069.06 and 12,603.60

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Solution

The fourth proportional to 52,046.28, 78,069.06 and 12,603.60 is: 18,905.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,046.28 : 78,069.06 = 12,603.60 : x
  2. Step 2: Convert to fraction form
    52,046.28/78,069.06 = 12,603.60/x
  3. Step 3: Cross multiply
    52,046.28x = 78,069.06 × 12,603.60
  4. Step 4: Simplify right side
    52,046.28x = 983,951,204.62
  5. Step 5: Solve for x
    x = 983,951,204.62/52,046.28
  6. Step 6: Final answer
    x = 18,905.31

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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.