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Finding the Fourth Proportional to 69,779.63, 104,669.46 and 17,189.10

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Solution

The fourth proportional to 69,779.63, 104,669.46 and 17,189.10 is: 25,783.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,779.63 : 104,669.46 = 17,189.10 : x
  2. Step 2: Convert to fraction form
    69,779.63/104,669.46 = 17,189.10/x
  3. Step 3: Cross multiply
    69,779.63x = 104,669.46 × 17,189.10
  4. Step 4: Simplify right side
    69,779.63x = 1,799,173,814.89
  5. Step 5: Solve for x
    x = 1,799,173,814.89/69,779.63
  6. Step 6: Final answer
    x = 25,783.65

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Similar ratio
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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.