Home / 53,355.05-80,009-28,389.18

Finding the Fourth Proportional to 53,355.05, 80,009 and 28,389.18

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Solution

The fourth proportional to 53,355.05, 80,009 and 28,389.18 is: 42,571.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,355.05 : 80,009 = 28,389.18 : x
  2. Step 2: Convert to fraction form
    53,355.05/80,009 = 28,389.18/x
  3. Step 3: Cross multiply
    53,355.05x = 80,009 × 28,389.18
  4. Step 4: Simplify right side
    53,355.05x = 2,271,389,902.62
  5. Step 5: Solve for x
    x = 2,271,389,902.62/53,355.05
  6. Step 6: Final answer
    x = 42,571.23

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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.