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Finding the Fourth Proportional to 85,367.55, 128,057.56 and 32,777.06

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Solution

The fourth proportional to 85,367.55, 128,057.56 and 32,777.06 is: 49,167.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,367.55 : 128,057.56 = 32,777.06 : x
  2. Step 2: Convert to fraction form
    85,367.55/128,057.56 = 32,777.06/x
  3. Step 3: Cross multiply
    85,367.55x = 128,057.56 × 32,777.06
  4. Step 4: Simplify right side
    85,367.55x = 4,197,349,605.34
  5. Step 5: Solve for x
    x = 4,197,349,605.34/85,367.55
  6. Step 6: Final answer
    x = 49,167.97

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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.