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Finding the Fourth Proportional to 79,357.41, 119,045.16 and 28,780.27

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Solution

The fourth proportional to 79,357.41, 119,045.16 and 28,780.27 is: 43,173.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,357.41 : 119,045.16 = 28,780.27 : x
  2. Step 2: Convert to fraction form
    79,357.41/119,045.16 = 28,780.27/x
  3. Step 3: Cross multiply
    79,357.41x = 119,045.16 × 28,780.27
  4. Step 4: Simplify right side
    79,357.41x = 3,426,151,549.38
  5. Step 5: Solve for x
    x = 3,426,151,549.38/79,357.41
  6. Step 6: Final answer
    x = 43,173.68

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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.