Home / 85,076.57-127,626.53-28,901.60

Finding the Fourth Proportional to 85,076.57, 127,626.53 and 28,901.60

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Solution

The fourth proportional to 85,076.57, 127,626.53 and 28,901.60 is: 43,356.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,076.57 : 127,626.53 = 28,901.60 : x
  2. Step 2: Convert to fraction form
    85,076.57/127,626.53 = 28,901.60/x
  3. Step 3: Cross multiply
    85,076.57x = 127,626.53 × 28,901.60
  4. Step 4: Simplify right side
    85,076.57x = 3,688,610,919.45
  5. Step 5: Solve for x
    x = 3,688,610,919.45/85,076.57
  6. Step 6: Final answer
    x = 43,356.37

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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.