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Finding the Fourth Proportional to 84,028.54, 115,959.40 and 45,788.09

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Solution

The fourth proportional to 84,028.54, 115,959.40 and 45,788.09 is: 63,187.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,028.54 : 115,959.40 = 45,788.09 : x
  2. Step 2: Convert to fraction form
    84,028.54/115,959.40 = 45,788.09/x
  3. Step 3: Cross multiply
    84,028.54x = 115,959.40 × 45,788.09
  4. Step 4: Simplify right side
    84,028.54x = 5,309,559,214.61
  5. Step 5: Solve for x
    x = 5,309,559,214.61/84,028.54
  6. Step 6: Final answer
    x = 63,187.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.