Home / 79,270.35-118,901.39-20,106.53

Finding the Fourth Proportional to 79,270.35, 118,901.39 and 20,106.53

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Solution

The fourth proportional to 79,270.35, 118,901.39 and 20,106.53 is: 30,158.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,270.35 : 118,901.39 = 20,106.53 : x
  2. Step 2: Convert to fraction form
    79,270.35/118,901.39 = 20,106.53/x
  3. Step 3: Cross multiply
    79,270.35x = 118,901.39 × 20,106.53
  4. Step 4: Simplify right side
    79,270.35x = 2,390,693,670.04
  5. Step 5: Solve for x
    x = 2,390,693,670.04/79,270.35
  6. Step 6: Final answer
    x = 30,158.74

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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.