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Finding the Fourth Proportional to 57,002.78, 85,502.12 and 17,558.89

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Solution

The fourth proportional to 57,002.78, 85,502.12 and 17,558.89 is: 26,337.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,002.78 : 85,502.12 = 17,558.89 : x
  2. Step 2: Convert to fraction form
    57,002.78/85,502.12 = 17,558.89/x
  3. Step 3: Cross multiply
    57,002.78x = 85,502.12 × 17,558.89
  4. Step 4: Simplify right side
    57,002.78x = 1,501,322,018.30
  5. Step 5: Solve for x
    x = 1,501,322,018.30/57,002.78
  6. Step 6: Final answer
    x = 26,337.70

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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.