Home / 78,230.68-107,977.19-45,972.43

Finding the Fourth Proportional to 78,230.68, 107,977.19 and 45,972.43

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Solution

The fourth proportional to 78,230.68, 107,977.19 and 45,972.43 is: 63,453.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,230.68 : 107,977.19 = 45,972.43 : x
  2. Step 2: Convert to fraction form
    78,230.68/107,977.19 = 45,972.43/x
  3. Step 3: Cross multiply
    78,230.68x = 107,977.19 × 45,972.43
  4. Step 4: Simplify right side
    78,230.68x = 4,963,973,309.07
  5. Step 5: Solve for x
    x = 4,963,973,309.07/78,230.68
  6. Step 6: Final answer
    x = 63,453.03

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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.