Home / 79,724.16-119,364.78-40,161.32

Finding the Fourth Proportional to 79,724.16, 119,364.78 and 40,161.32

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Solution

The fourth proportional to 79,724.16, 119,364.78 and 40,161.32 is: 60,130.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,724.16 : 119,364.78 = 40,161.32 : x
  2. Step 2: Convert to fraction form
    79,724.16/119,364.78 = 40,161.32/x
  3. Step 3: Cross multiply
    79,724.16x = 119,364.78 × 40,161.32
  4. Step 4: Simplify right side
    79,724.16x = 4,793,847,126.31
  5. Step 5: Solve for x
    x = 4,793,847,126.31/79,724.16
  6. Step 6: Final answer
    x = 60,130.42

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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.