Home / 57,213.20-85,798.73-19,763.66

Finding the Fourth Proportional to 57,213.20, 85,798.73 and 19,763.66

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Solution

The fourth proportional to 57,213.20, 85,798.73 and 19,763.66 is: 29,638.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,213.20 : 85,798.73 = 19,763.66 : x
  2. Step 2: Convert to fraction form
    57,213.20/85,798.73 = 19,763.66/x
  3. Step 3: Cross multiply
    57,213.20x = 85,798.73 × 19,763.66
  4. Step 4: Simplify right side
    57,213.20x = 1,695,696,400.34
  5. Step 5: Solve for x
    x = 1,695,696,400.34/57,213.20
  6. Step 6: Final answer
    x = 29,638.20

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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.