Home / 48,455.92-72,678.26-13,398.31

Finding the Fourth Proportional to 48,455.92, 72,678.26 and 13,398.31

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Solution

The fourth proportional to 48,455.92, 72,678.26 and 13,398.31 is: 20,095.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,455.92 : 72,678.26 = 13,398.31 : x
  2. Step 2: Convert to fraction form
    48,455.92/72,678.26 = 13,398.31/x
  3. Step 3: Cross multiply
    48,455.92x = 72,678.26 × 13,398.31
  4. Step 4: Simplify right side
    48,455.92x = 973,765,982.08
  5. Step 5: Solve for x
    x = 973,765,982.08/48,455.92
  6. Step 6: Final answer
    x = 20,095.91

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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.