Home / 78,467.10-117,698.82-19,303.29

Finding the Fourth Proportional to 78,467.10, 117,698.82 and 19,303.29

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Solution

The fourth proportional to 78,467.10, 117,698.82 and 19,303.29 is: 28,954.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,467.10 : 117,698.82 = 19,303.29 : x
  2. Step 2: Convert to fraction form
    78,467.10/117,698.82 = 19,303.29/x
  3. Step 3: Cross multiply
    78,467.10x = 117,698.82 × 19,303.29
  4. Step 4: Simplify right side
    78,467.10x = 2,271,974,455.12
  5. Step 5: Solve for x
    x = 2,271,974,455.12/78,467.10
  6. Step 6: Final answer
    x = 28,954.48

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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.