Home / 66,024.40-91,096.09-39,144.55

Finding the Fourth Proportional to 66,024.40, 91,096.09 and 39,144.55

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Solution

The fourth proportional to 66,024.40, 91,096.09 and 39,144.55 is: 54,009.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,024.40 : 91,096.09 = 39,144.55 : x
  2. Step 2: Convert to fraction form
    66,024.40/91,096.09 = 39,144.55/x
  3. Step 3: Cross multiply
    66,024.40x = 91,096.09 × 39,144.55
  4. Step 4: Simplify right side
    66,024.40x = 3,565,915,449.81
  5. Step 5: Solve for x
    x = 3,565,915,449.81/66,024.40
  6. Step 6: Final answer
    x = 54,009.05

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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.