Home / 88,821.36-122,572.80-48,535.20

Finding the Fourth Proportional to 88,821.36, 122,572.80 and 48,535.20

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Solution

The fourth proportional to 88,821.36, 122,572.80 and 48,535.20 is: 66,978.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,821.36 : 122,572.80 = 48,535.20 : x
  2. Step 2: Convert to fraction form
    88,821.36/122,572.80 = 48,535.20/x
  3. Step 3: Cross multiply
    88,821.36x = 122,572.80 × 48,535.20
  4. Step 4: Simplify right side
    88,821.36x = 5,949,095,362.56
  5. Step 5: Solve for x
    x = 5,949,095,362.56/88,821.36
  6. Step 6: Final answer
    x = 66,978.21

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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.