Home / 81,026.40-121,582.26-41,583.48

Finding the Fourth Proportional to 81,026.40, 121,582.26 and 41,583.48

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Solution

The fourth proportional to 81,026.40, 121,582.26 and 41,583.48 is: 62,397.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,026.40 : 121,582.26 = 41,583.48 : x
  2. Step 2: Convert to fraction form
    81,026.40/121,582.26 = 41,583.48/x
  3. Step 3: Cross multiply
    81,026.40x = 121,582.26 × 41,583.48
  4. Step 4: Simplify right side
    81,026.40x = 5,055,813,477.06
  5. Step 5: Solve for x
    x = 5,055,813,477.06/81,026.40
  6. Step 6: Final answer
    x = 62,397.11

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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.