Home / 90,203.40-124,477.62-49,918.86

Finding the Fourth Proportional to 90,203.40, 124,477.62 and 49,918.86

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Solution

The fourth proportional to 90,203.40, 124,477.62 and 49,918.86 is: 68,886.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,203.40 : 124,477.62 = 49,918.86 : x
  2. Step 2: Convert to fraction form
    90,203.40/124,477.62 = 49,918.86/x
  3. Step 3: Cross multiply
    90,203.40x = 124,477.62 × 49,918.86
  4. Step 4: Simplify right side
    90,203.40x = 6,213,780,388.32
  5. Step 5: Solve for x
    x = 6,213,780,388.32/90,203.40
  6. Step 6: Final answer
    x = 68,886.33

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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.