Home / 48,518.46-72,777.65-13,458.11

Finding the Fourth Proportional to 48,518.46, 72,777.65 and 13,458.11

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Solution

The fourth proportional to 48,518.46, 72,777.65 and 13,458.11 is: 20,187.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,518.46 : 72,777.65 = 13,458.11 : x
  2. Step 2: Convert to fraction form
    48,518.46/72,777.65 = 13,458.11/x
  3. Step 3: Cross multiply
    48,518.46x = 72,777.65 × 13,458.11
  4. Step 4: Simplify right side
    48,518.46x = 979,449,188.06
  5. Step 5: Solve for x
    x = 979,449,188.06/48,518.46
  6. Step 6: Final answer
    x = 20,187.15

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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.