Home / 78,464.03-108,279.08-42,654.94

Finding the Fourth Proportional to 78,464.03, 108,279.08 and 42,654.94

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Solution

The fourth proportional to 78,464.03, 108,279.08 and 42,654.94 is: 58,863.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,464.03 : 108,279.08 = 42,654.94 : x
  2. Step 2: Convert to fraction form
    78,464.03/108,279.08 = 42,654.94/x
  3. Step 3: Cross multiply
    78,464.03x = 108,279.08 × 42,654.94
  4. Step 4: Simplify right side
    78,464.03x = 4,618,637,336.64
  5. Step 5: Solve for x
    x = 4,618,637,336.64/78,464.03
  6. Step 6: Final answer
    x = 58,863.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.