Home / 83,480.49-115,217.88-63,303.36

Finding the Fourth Proportional to 83,480.49, 115,217.88 and 63,303.36

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Solution

The fourth proportional to 83,480.49, 115,217.88 and 63,303.36 is: 87,369.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,480.49 : 115,217.88 = 63,303.36 : x
  2. Step 2: Convert to fraction form
    83,480.49/115,217.88 = 63,303.36/x
  3. Step 3: Cross multiply
    83,480.49x = 115,217.88 × 63,303.36
  4. Step 4: Simplify right side
    83,480.49x = 7,293,678,266.62
  5. Step 5: Solve for x
    x = 7,293,678,266.62/83,480.49
  6. Step 6: Final answer
    x = 87,369.85

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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.