Home / 79,239.27-118,859.08-20,079.55

Finding the Fourth Proportional to 79,239.27, 118,859.08 and 20,079.55

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Solution

The fourth proportional to 79,239.27, 118,859.08 and 20,079.55 is: 30,119.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,239.27 : 118,859.08 = 20,079.55 : x
  2. Step 2: Convert to fraction form
    79,239.27/118,859.08 = 20,079.55/x
  3. Step 3: Cross multiply
    79,239.27x = 118,859.08 × 20,079.55
  4. Step 4: Simplify right side
    79,239.27x = 2,386,636,739.42
  5. Step 5: Solve for x
    x = 2,386,636,739.42/79,239.27
  6. Step 6: Final answer
    x = 30,119.37

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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.