Home / 52,638.45-72,640.91-28,765.28

Finding the Fourth Proportional to 52,638.45, 72,640.91 and 28,765.28

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Solution

The fourth proportional to 52,638.45, 72,640.91 and 28,765.28 is: 39,696.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,638.45 : 72,640.91 = 28,765.28 : x
  2. Step 2: Convert to fraction form
    52,638.45/72,640.91 = 28,765.28/x
  3. Step 3: Cross multiply
    52,638.45x = 72,640.91 × 28,765.28
  4. Step 4: Simplify right side
    52,638.45x = 2,089,535,824.31
  5. Step 5: Solve for x
    x = 2,089,535,824.31/52,638.45
  6. Step 6: Final answer
    x = 39,696.00

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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.