Home / 90,120.48-124,362.36-49,283.82

Finding the Fourth Proportional to 90,120.48, 124,362.36 and 49,283.82

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Solution

The fourth proportional to 90,120.48, 124,362.36 and 49,283.82 is: 68,009.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,120.48 : 124,362.36 = 49,283.82 : x
  2. Step 2: Convert to fraction form
    90,120.48/124,362.36 = 49,283.82/x
  3. Step 3: Cross multiply
    90,120.48x = 124,362.36 × 49,283.82
  4. Step 4: Simplify right side
    90,120.48x = 6,129,052,165.02
  5. Step 5: Solve for x
    x = 6,129,052,165.02/90,120.48
  6. Step 6: Final answer
    x = 68,009.54

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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.