Home / 42,120.26-63,169.59-19,927.70

Finding the Fourth Proportional to 42,120.26, 63,169.59 and 19,927.70

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Solution

The fourth proportional to 42,120.26, 63,169.59 and 19,927.70 is: 29,886.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,120.26 : 63,169.59 = 19,927.70 : x
  2. Step 2: Convert to fraction form
    42,120.26/63,169.59 = 19,927.70/x
  3. Step 3: Cross multiply
    42,120.26x = 63,169.59 × 19,927.70
  4. Step 4: Simplify right side
    42,120.26x = 1,258,824,638.64
  5. Step 5: Solve for x
    x = 1,258,824,638.64/42,120.26
  6. Step 6: Final answer
    x = 29,886.44

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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.