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Finding the Fourth Proportional to 69,779.16, 104,668.79 and 30,314.75

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Solution

The fourth proportional to 69,779.16, 104,668.79 and 30,314.75 is: 45,472.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,779.16 : 104,668.79 = 30,314.75 : x
  2. Step 2: Convert to fraction form
    69,779.16/104,668.79 = 30,314.75/x
  3. Step 3: Cross multiply
    69,779.16x = 104,668.79 × 30,314.75
  4. Step 4: Simplify right side
    69,779.16x = 3,173,007,526.73
  5. Step 5: Solve for x
    x = 3,173,007,526.73/69,779.16
  6. Step 6: Final answer
    x = 45,472.14

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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.