Home / 79,319.40-109,403.64-50,998.02

Finding the Fourth Proportional to 79,319.40, 109,403.64 and 50,998.02

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Solution

The fourth proportional to 79,319.40, 109,403.64 and 50,998.02 is: 70,340.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,319.40 : 109,403.64 = 50,998.02 : x
  2. Step 2: Convert to fraction form
    79,319.40/109,403.64 = 50,998.02/x
  3. Step 3: Cross multiply
    79,319.40x = 109,403.64 × 50,998.02
  4. Step 4: Simplify right side
    79,319.40x = 5,579,369,020.79
  5. Step 5: Solve for x
    x = 5,579,369,020.79/79,319.40
  6. Step 6: Final answer
    x = 70,340.53

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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.