Home / 99,783.36-149,681.52-33,220.80

Finding the Fourth Proportional to 99,783.36, 149,681.52 and 33,220.80

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Solution

The fourth proportional to 99,783.36, 149,681.52 and 33,220.80 is: 49,833.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,783.36 : 149,681.52 = 33,220.80 : x
  2. Step 2: Convert to fraction form
    99,783.36/149,681.52 = 33,220.80/x
  3. Step 3: Cross multiply
    99,783.36x = 149,681.52 × 33,220.80
  4. Step 4: Simplify right side
    99,783.36x = 4,972,539,839.62
  5. Step 5: Solve for x
    x = 4,972,539,839.62/99,783.36
  6. Step 6: Final answer
    x = 49,833.36

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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.