Home / 43,085.94-64,639.23-20,873.37

Finding the Fourth Proportional to 43,085.94, 64,639.23 and 20,873.37

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Solution

The fourth proportional to 43,085.94, 64,639.23 and 20,873.37 is: 31,315.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,085.94 : 64,639.23 = 20,873.37 : x
  2. Step 2: Convert to fraction form
    43,085.94/64,639.23 = 20,873.37/x
  3. Step 3: Cross multiply
    43,085.94x = 64,639.23 × 20,873.37
  4. Step 4: Simplify right side
    43,085.94x = 1,349,238,564.31
  5. Step 5: Solve for x
    x = 1,349,238,564.31/43,085.94
  6. Step 6: Final answer
    x = 31,315.05

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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.