Home / 85,512.20-128,268.30-23,182.70

Finding the Fourth Proportional to 85,512.20, 128,268.30 and 23,182.70

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Solution

The fourth proportional to 85,512.20, 128,268.30 and 23,182.70 is: 34,774.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,512.20 : 128,268.30 = 23,182.70 : x
  2. Step 2: Convert to fraction form
    85,512.20/128,268.30 = 23,182.70/x
  3. Step 3: Cross multiply
    85,512.20x = 128,268.30 × 23,182.70
  4. Step 4: Simplify right side
    85,512.20x = 2,973,605,518.41
  5. Step 5: Solve for x
    x = 2,973,605,518.41/85,512.20
  6. Step 6: Final answer
    x = 34,774.05

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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.