Home / 52,441.60-78,662.40-31,705.60

Finding the Fourth Proportional to 52,441.60, 78,662.40 and 31,705.60

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Solution

The fourth proportional to 52,441.60, 78,662.40 and 31,705.60 is: 47,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,441.60 : 78,662.40 = 31,705.60 : x
  2. Step 2: Convert to fraction form
    52,441.60/78,662.40 = 31,705.60/x
  3. Step 3: Cross multiply
    52,441.60x = 78,662.40 × 31,705.60
  4. Step 4: Simplify right side
    52,441.60x = 2,494,038,589.44
  5. Step 5: Solve for x
    x = 2,494,038,589.44/52,441.60
  6. Step 6: Final answer
    x = 47,558.40

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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.