Home / 85,337.53-128,021.16-29,183.26

Finding the Fourth Proportional to 85,337.53, 128,021.16 and 29,183.26

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Solution

The fourth proportional to 85,337.53, 128,021.16 and 29,183.26 is: 43,779.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,337.53 : 128,021.16 = 29,183.26 : x
  2. Step 2: Convert to fraction form
    85,337.53/128,021.16 = 29,183.26/x
  3. Step 3: Cross multiply
    85,337.53x = 128,021.16 × 29,183.26
  4. Step 4: Simplify right side
    85,337.53x = 3,736,074,797.78
  5. Step 5: Solve for x
    x = 3,736,074,797.78/85,337.53
  6. Step 6: Final answer
    x = 43,779.97

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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.