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Finding the Fourth Proportional to 85,360.70, 128,041.07 and 29,201.34

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Solution

The fourth proportional to 85,360.70, 128,041.07 and 29,201.34 is: 43,802.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,360.70 : 128,041.07 = 29,201.34 : x
  2. Step 2: Convert to fraction form
    85,360.70/128,041.07 = 29,201.34/x
  3. Step 3: Cross multiply
    85,360.70x = 128,041.07 × 29,201.34
  4. Step 4: Simplify right side
    85,360.70x = 3,738,970,673.03
  5. Step 5: Solve for x
    x = 3,738,970,673.03/85,360.70
  6. Step 6: Final answer
    x = 43,802.02

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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.