Home / 48,438.96-72,662.52-13,378.56

Finding the Fourth Proportional to 48,438.96, 72,662.52 and 13,378.56

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Solution

The fourth proportional to 48,438.96, 72,662.52 and 13,378.56 is: 20,068.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,438.96 : 72,662.52 = 13,378.56 : x
  2. Step 2: Convert to fraction form
    48,438.96/72,662.52 = 13,378.56/x
  3. Step 3: Cross multiply
    48,438.96x = 72,662.52 × 13,378.56
  4. Step 4: Simplify right side
    48,438.96x = 972,119,883.57
  5. Step 5: Solve for x
    x = 972,119,883.57/48,438.96
  6. Step 6: Final answer
    x = 20,068.97

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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.