Home / 66,379.05-99,516.75-45,266.76

Finding the Fourth Proportional to 66,379.05, 99,516.75 and 45,266.76

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Solution

The fourth proportional to 66,379.05, 99,516.75 and 45,266.76 is: 67,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,379.05 : 99,516.75 = 45,266.76 : x
  2. Step 2: Convert to fraction form
    66,379.05/99,516.75 = 45,266.76/x
  3. Step 3: Cross multiply
    66,379.05x = 99,516.75 × 45,266.76
  4. Step 4: Simplify right side
    66,379.05x = 4,504,800,838.23
  5. Step 5: Solve for x
    x = 4,504,800,838.23/66,379.05
  6. Step 6: Final answer
    x = 67,864.80

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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.