Home / 85,989.96-128,986.44-29,832.06

Finding the Fourth Proportional to 85,989.96, 128,986.44 and 29,832.06

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Solution

The fourth proportional to 85,989.96, 128,986.44 and 29,832.06 is: 44,748.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,989.96 : 128,986.44 = 29,832.06 : x
  2. Step 2: Convert to fraction form
    85,989.96/128,986.44 = 29,832.06/x
  3. Step 3: Cross multiply
    85,989.96x = 128,986.44 × 29,832.06
  4. Step 4: Simplify right side
    85,989.96x = 3,847,931,217.27
  5. Step 5: Solve for x
    x = 3,847,931,217.27/85,989.96
  6. Step 6: Final answer
    x = 44,748.61

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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.