Home / 66,072.46-91,150.23-39,216.10

Finding the Fourth Proportional to 66,072.46, 91,150.23 and 39,216.10

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Solution

The fourth proportional to 66,072.46, 91,150.23 and 39,216.10 is: 54,100.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,072.46 : 91,150.23 = 39,216.10 : x
  2. Step 2: Convert to fraction form
    66,072.46/91,150.23 = 39,216.10/x
  3. Step 3: Cross multiply
    66,072.46x = 91,150.23 × 39,216.10
  4. Step 4: Simplify right side
    66,072.46x = 3,574,556,534.70
  5. Step 5: Solve for x
    x = 3,574,556,534.70/66,072.46
  6. Step 6: Final answer
    x = 54,100.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.