Home / 59,309.09-81,876.23-40,289.48

Finding the Fourth Proportional to 59,309.09, 81,876.23 and 40,289.48

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Solution

The fourth proportional to 59,309.09, 81,876.23 and 40,289.48 is: 55,619.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,309.09 : 81,876.23 = 40,289.48 : x
  2. Step 2: Convert to fraction form
    59,309.09/81,876.23 = 40,289.48/x
  3. Step 3: Cross multiply
    59,309.09x = 81,876.23 × 40,289.48
  4. Step 4: Simplify right side
    59,309.09x = 3,298,750,731.06
  5. Step 5: Solve for x
    x = 3,298,750,731.06/59,309.09
  6. Step 6: Final answer
    x = 55,619.65

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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.