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Finding the Fourth Proportional to 79,373.80, 119,065.26 and 28,783.84

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Solution

The fourth proportional to 79,373.80, 119,065.26 and 28,783.84 is: 43,177.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,373.80 : 119,065.26 = 28,783.84 : x
  2. Step 2: Convert to fraction form
    79,373.80/119,065.26 = 28,783.84/x
  3. Step 3: Cross multiply
    79,373.80x = 119,065.26 × 28,783.84
  4. Step 4: Simplify right side
    79,373.80x = 3,427,155,393.40
  5. Step 5: Solve for x
    x = 3,427,155,393.40/79,373.80
  6. Step 6: Final answer
    x = 43,177.41

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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.