Home / 85,533.20-128,301.52-29,372.96

Finding the Fourth Proportional to 85,533.20, 128,301.52 and 29,372.96

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Solution

The fourth proportional to 85,533.20, 128,301.52 and 29,372.96 is: 44,060.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,533.20 : 128,301.52 = 29,372.96 : x
  2. Step 2: Convert to fraction form
    85,533.20/128,301.52 = 29,372.96/x
  3. Step 3: Cross multiply
    85,533.20x = 128,301.52 × 29,372.96
  4. Step 4: Simplify right side
    85,533.20x = 3,768,595,414.90
  5. Step 5: Solve for x
    x = 3,768,595,414.90/85,533.20
  6. Step 6: Final answer
    x = 44,060.03

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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.