Home / 85,601.23-128,374.62-29,427.83

Finding the Fourth Proportional to 85,601.23, 128,374.62 and 29,427.83

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Solution

The fourth proportional to 85,601.23, 128,374.62 and 29,427.83 is: 44,132.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,601.23 : 128,374.62 = 29,427.83 : x
  2. Step 2: Convert to fraction form
    85,601.23/128,374.62 = 29,427.83/x
  3. Step 3: Cross multiply
    85,601.23x = 128,374.62 × 29,427.83
  4. Step 4: Simplify right side
    85,601.23x = 3,777,786,749.44
  5. Step 5: Solve for x
    x = 3,777,786,749.44/85,601.23
  6. Step 6: Final answer
    x = 44,132.39

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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.