Home / 69,079.27-103,618.90-19,159.36

Finding the Fourth Proportional to 69,079.27, 103,618.90 and 19,159.36

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Solution

The fourth proportional to 69,079.27, 103,618.90 and 19,159.36 is: 28,739.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,079.27 : 103,618.90 = 19,159.36 : x
  2. Step 2: Convert to fraction form
    69,079.27/103,618.90 = 19,159.36/x
  3. Step 3: Cross multiply
    69,079.27x = 103,618.90 × 19,159.36
  4. Step 4: Simplify right side
    69,079.27x = 1,985,271,807.90
  5. Step 5: Solve for x
    x = 1,985,271,807.90/69,079.27
  6. Step 6: Final answer
    x = 28,739.04

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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.