Home / 57,438.85-86,158.31-17,999.05

Finding the Fourth Proportional to 57,438.85, 86,158.31 and 17,999.05

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Solution

The fourth proportional to 57,438.85, 86,158.31 and 17,999.05 is: 26,998.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,438.85 : 86,158.31 = 17,999.05 : x
  2. Step 2: Convert to fraction form
    57,438.85/86,158.31 = 17,999.05/x
  3. Step 3: Cross multiply
    57,438.85x = 86,158.31 × 17,999.05
  4. Step 4: Simplify right side
    57,438.85x = 1,550,767,729.61
  5. Step 5: Solve for x
    x = 1,550,767,729.61/57,438.85
  6. Step 6: Final answer
    x = 26,998.59

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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.