Home / 57,439.11-86,158.71-17,999.30

Finding the Fourth Proportional to 57,439.11, 86,158.71 and 17,999.30

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Solution

The fourth proportional to 57,439.11, 86,158.71 and 17,999.30 is: 26,998.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,439.11 : 86,158.71 = 17,999.30 : x
  2. Step 2: Convert to fraction form
    57,439.11/86,158.71 = 17,999.30/x
  3. Step 3: Cross multiply
    57,439.11x = 86,158.71 × 17,999.30
  4. Step 4: Simplify right side
    57,439.11x = 1,550,796,038.11
  5. Step 5: Solve for x
    x = 1,550,796,038.11/57,439.11
  6. Step 6: Final answer
    x = 26,998.96

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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.