Home / 69,050.12-103,577.40-19,130.69

Finding the Fourth Proportional to 69,050.12, 103,577.40 and 19,130.69

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Solution

The fourth proportional to 69,050.12, 103,577.40 and 19,130.69 is: 28,696.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,050.12 : 103,577.40 = 19,130.69 : x
  2. Step 2: Convert to fraction form
    69,050.12/103,577.40 = 19,130.69/x
  3. Step 3: Cross multiply
    69,050.12x = 103,577.40 × 19,130.69
  4. Step 4: Simplify right side
    69,050.12x = 1,981,507,389.35
  5. Step 5: Solve for x
    x = 1,981,507,389.35/69,050.12
  6. Step 6: Final answer
    x = 28,696.66

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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.