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Finding the Fourth Proportional to 79,259.91, 118,888.87 and 19,288.72

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Solution

The fourth proportional to 79,259.91, 118,888.87 and 19,288.72 is: 28,932.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,259.91 : 118,888.87 = 19,288.72 : x
  2. Step 2: Convert to fraction form
    79,259.91/118,888.87 = 19,288.72/x
  3. Step 3: Cross multiply
    79,259.91x = 118,888.87 × 19,288.72
  4. Step 4: Simplify right side
    79,259.91x = 2,293,214,124.55
  5. Step 5: Solve for x
    x = 2,293,214,124.55/79,259.91
  6. Step 6: Final answer
    x = 28,932.84

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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.