Home / 85,533.24-127,447.35-76,222.20

Finding the Fourth Proportional to 85,533.24, 127,447.35 and 76,222.20

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Solution

The fourth proportional to 85,533.24, 127,447.35 and 76,222.20 is: 113,573.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,533.24 : 127,447.35 = 76,222.20 : x
  2. Step 2: Convert to fraction form
    85,533.24/127,447.35 = 76,222.20/x
  3. Step 3: Cross multiply
    85,533.24x = 127,447.35 × 76,222.20
  4. Step 4: Simplify right side
    85,533.24x = 9,714,317,401.17
  5. Step 5: Solve for x
    x = 9,714,317,401.17/85,533.24
  6. Step 6: Final answer
    x = 113,573.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.