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Finding the Fourth Proportional to 84,665.00, 127,073.64 and 45,255.80

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Solution

The fourth proportional to 84,665.00, 127,073.64 and 45,255.80 is: 67,924.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,665.00 : 127,073.64 = 45,255.80 : x
  2. Step 2: Convert to fraction form
    84,665.00/127,073.64 = 45,255.80/x
  3. Step 3: Cross multiply
    84,665.00x = 127,073.64 × 45,255.80
  4. Step 4: Simplify right side
    84,665.00x = 5,750,819,724.51
  5. Step 5: Solve for x
    x = 5,750,819,724.51/84,665.00
  6. Step 6: Final answer
    x = 67,924.40

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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.