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Finding the Fourth Proportional to 85,670.56, 128,514.44 and 29,503.27

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Solution

The fourth proportional to 85,670.56, 128,514.44 and 29,503.27 is: 44,257.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,670.56 : 128,514.44 = 29,503.27 : x
  2. Step 2: Convert to fraction form
    85,670.56/128,514.44 = 29,503.27/x
  3. Step 3: Cross multiply
    85,670.56x = 128,514.44 × 29,503.27
  4. Step 4: Simplify right side
    85,670.56x = 3,791,595,579.65
  5. Step 5: Solve for x
    x = 3,791,595,579.65/85,670.56
  6. Step 6: Final answer
    x = 44,257.86

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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.