Home / 57,981.55-86,967.46-18,528.07

Finding the Fourth Proportional to 57,981.55, 86,967.46 and 18,528.07

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Solution

The fourth proportional to 57,981.55, 86,967.46 and 18,528.07 is: 27,790.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,981.55 : 86,967.46 = 18,528.07 : x
  2. Step 2: Convert to fraction form
    57,981.55/86,967.46 = 18,528.07/x
  3. Step 3: Cross multiply
    57,981.55x = 86,967.46 × 18,528.07
  4. Step 4: Simplify right side
    57,981.55x = 1,611,339,186.60
  5. Step 5: Solve for x
    x = 1,611,339,186.60/57,981.55
  6. Step 6: Final answer
    x = 27,790.55

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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.