Home / 52,738.36-72,778.67-28,539.30

Finding the Fourth Proportional to 52,738.36, 72,778.67 and 28,539.30

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Solution

The fourth proportional to 52,738.36, 72,778.67 and 28,539.30 is: 39,384.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,738.36 : 72,778.67 = 28,539.30 : x
  2. Step 2: Convert to fraction form
    52,738.36/72,778.67 = 28,539.30/x
  3. Step 3: Cross multiply
    52,738.36x = 72,778.67 × 28,539.30
  4. Step 4: Simplify right side
    52,738.36x = 2,077,052,533.98
  5. Step 5: Solve for x
    x = 2,077,052,533.98/52,738.36
  6. Step 6: Final answer
    x = 39,384.10

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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.