Home / 66,020.28-91,088.78-43,056.78

Finding the Fourth Proportional to 66,020.28, 91,088.78 and 43,056.78

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Solution

The fourth proportional to 66,020.28, 91,088.78 and 43,056.78 is: 59,405.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,020.28 : 91,088.78 = 43,056.78 : x
  2. Step 2: Convert to fraction form
    66,020.28/91,088.78 = 43,056.78/x
  3. Step 3: Cross multiply
    66,020.28x = 91,088.78 × 43,056.78
  4. Step 4: Simplify right side
    66,020.28x = 3,921,989,560.93
  5. Step 5: Solve for x
    x = 3,921,989,560.93/66,020.28
  6. Step 6: Final answer
    x = 59,405.83

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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.