Home / 85,824.55-128,705.20-29,650.24

Finding the Fourth Proportional to 85,824.55, 128,705.20 and 29,650.24

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Solution

The fourth proportional to 85,824.55, 128,705.20 and 29,650.24 is: 44,464.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,824.55 : 128,705.20 = 29,650.24 : x
  2. Step 2: Convert to fraction form
    85,824.55/128,705.20 = 29,650.24/x
  3. Step 3: Cross multiply
    85,824.55x = 128,705.20 × 29,650.24
  4. Step 4: Simplify right side
    85,824.55x = 3,816,140,069.25
  5. Step 5: Solve for x
    x = 3,816,140,069.25/85,824.55
  6. Step 6: Final answer
    x = 44,464.43

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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.