Home / 66,162.42-99,247.33-21,187.74

Finding the Fourth Proportional to 66,162.42, 99,247.33 and 21,187.74

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Solution

The fourth proportional to 66,162.42, 99,247.33 and 21,187.74 is: 31,782.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,162.42 : 99,247.33 = 21,187.74 : x
  2. Step 2: Convert to fraction form
    66,162.42/99,247.33 = 21,187.74/x
  3. Step 3: Cross multiply
    66,162.42x = 99,247.33 × 21,187.74
  4. Step 4: Simplify right side
    66,162.42x = 2,102,826,424.40
  5. Step 5: Solve for x
    x = 2,102,826,424.40/66,162.42
  6. Step 6: Final answer
    x = 31,782.79

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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.