Home / 78,205.03-117,314.46-22,045.64

Finding the Fourth Proportional to 78,205.03, 117,314.46 and 22,045.64

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Solution

The fourth proportional to 78,205.03, 117,314.46 and 22,045.64 is: 33,070.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,205.03 : 117,314.46 = 22,045.64 : x
  2. Step 2: Convert to fraction form
    78,205.03/117,314.46 = 22,045.64/x
  3. Step 3: Cross multiply
    78,205.03x = 117,314.46 × 22,045.64
  4. Step 4: Simplify right side
    78,205.03x = 2,586,271,765.38
  5. Step 5: Solve for x
    x = 2,586,271,765.38/78,205.03
  6. Step 6: Final answer
    x = 33,070.40

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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.