Home / 66,516.10-99,771.34-30,965.20

Finding the Fourth Proportional to 66,516.10, 99,771.34 and 30,965.20

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Solution

The fourth proportional to 66,516.10, 99,771.34 and 30,965.20 is: 46,446.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,516.10 : 99,771.34 = 30,965.20 : x
  2. Step 2: Convert to fraction form
    66,516.10/99,771.34 = 30,965.20/x
  3. Step 3: Cross multiply
    66,516.10x = 99,771.34 × 30,965.20
  4. Step 4: Simplify right side
    66,516.10x = 3,089,439,497.37
  5. Step 5: Solve for x
    x = 3,089,439,497.37/66,516.10
  6. Step 6: Final answer
    x = 46,446.49

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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.