Home / 84,768.32-117,001.50-48,979.10

Finding the Fourth Proportional to 84,768.32, 117,001.50 and 48,979.10

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Solution

The fourth proportional to 84,768.32, 117,001.50 and 48,979.10 is: 67,603.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,768.32 : 117,001.50 = 48,979.10 : x
  2. Step 2: Convert to fraction form
    84,768.32/117,001.50 = 48,979.10/x
  3. Step 3: Cross multiply
    84,768.32x = 117,001.50 × 48,979.10
  4. Step 4: Simplify right side
    84,768.32x = 5,730,628,168.65
  5. Step 5: Solve for x
    x = 5,730,628,168.65/84,768.32
  6. Step 6: Final answer
    x = 67,603.42

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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.