Home / 48,518.46-72,777.68-13,458.12

Finding the Fourth Proportional to 48,518.46, 72,777.68 and 13,458.12

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Solution

The fourth proportional to 48,518.46, 72,777.68 and 13,458.12 is: 20,187.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,518.46 : 72,777.68 = 13,458.12 : x
  2. Step 2: Convert to fraction form
    48,518.46/72,777.68 = 13,458.12/x
  3. Step 3: Cross multiply
    48,518.46x = 72,777.68 × 13,458.12
  4. Step 4: Simplify right side
    48,518.46x = 979,450,750.76
  5. Step 5: Solve for x
    x = 979,450,750.76/48,518.46
  6. Step 6: Final answer
    x = 20,187.18

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1.5x scale

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.