Home / 84,899.78-117,156.72-48,603.08

Finding the Fourth Proportional to 84,899.78, 117,156.72 and 48,603.08

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Solution

The fourth proportional to 84,899.78, 117,156.72 and 48,603.08 is: 67,069.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,899.78 : 117,156.72 = 48,603.08 : x
  2. Step 2: Convert to fraction form
    84,899.78/117,156.72 = 48,603.08/x
  3. Step 3: Cross multiply
    84,899.78x = 117,156.72 × 48,603.08
  4. Step 4: Simplify right side
    84,899.78x = 5,694,176,848.91
  5. Step 5: Solve for x
    x = 5,694,176,848.91/84,899.78
  6. Step 6: Final answer
    x = 67,069.40

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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.