Home / 79,178.34-118,771.58-20,014.51

Finding the Fourth Proportional to 79,178.34, 118,771.58 and 20,014.51

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Solution

The fourth proportional to 79,178.34, 118,771.58 and 20,014.51 is: 30,022.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,178.34 : 118,771.58 = 20,014.51 : x
  2. Step 2: Convert to fraction form
    79,178.34/118,771.58 = 20,014.51/x
  3. Step 3: Cross multiply
    79,178.34x = 118,771.58 × 20,014.51
  4. Step 4: Simplify right side
    79,178.34x = 2,377,154,975.63
  5. Step 5: Solve for x
    x = 2,377,154,975.63/79,178.34
  6. Step 6: Final answer
    x = 30,022.79

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1.5x scale

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.