Home / 57,439.53-86,159.43-18,000.09

Finding the Fourth Proportional to 57,439.53, 86,159.43 and 18,000.09

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Solution

The fourth proportional to 57,439.53, 86,159.43 and 18,000.09 is: 27,000.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,439.53 : 86,159.43 = 18,000.09 : x
  2. Step 2: Convert to fraction form
    57,439.53/86,159.43 = 18,000.09/x
  3. Step 3: Cross multiply
    57,439.53x = 86,159.43 × 18,000.09
  4. Step 4: Simplify right side
    57,439.53x = 1,550,877,494.35
  5. Step 5: Solve for x
    x = 1,550,877,494.35/57,439.53
  6. Step 6: Final answer
    x = 27,000.18

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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.