Home / 57,000.78-85,502.34-19,560.66

Finding the Fourth Proportional to 57,000.78, 85,502.34 and 19,560.66

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Solution

The fourth proportional to 57,000.78, 85,502.34 and 19,560.66 is: 29,341.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,000.78 : 85,502.34 = 19,560.66 : x
  2. Step 2: Convert to fraction form
    57,000.78/85,502.34 = 19,560.66/x
  3. Step 3: Cross multiply
    57,000.78x = 85,502.34 × 19,560.66
  4. Step 4: Simplify right side
    57,000.78x = 1,672,482,201.94
  5. Step 5: Solve for x
    x = 1,672,482,201.94/57,000.78
  6. Step 6: Final answer
    x = 29,341.39

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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.