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Finding the Fourth Proportional to 79,288.54, 109,415.82 and 45,296.89

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Solution

The fourth proportional to 79,288.54, 109,415.82 and 45,296.89 is: 62,508.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,288.54 : 109,415.82 = 45,296.89 : x
  2. Step 2: Convert to fraction form
    79,288.54/109,415.82 = 45,296.89/x
  3. Step 3: Cross multiply
    79,288.54x = 109,415.82 × 45,296.89
  4. Step 4: Simplify right side
    79,288.54x = 4,956,196,362.80
  5. Step 5: Solve for x
    x = 4,956,196,362.80/79,288.54
  6. Step 6: Final answer
    x = 62,508.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.