Home / 42,625.54-63,977.74-21,580.36

Finding the Fourth Proportional to 42,625.54, 63,977.74 and 21,580.36

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Solution

The fourth proportional to 42,625.54, 63,977.74 and 21,580.36 is: 32,390.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,625.54 : 63,977.74 = 21,580.36 : x
  2. Step 2: Convert to fraction form
    42,625.54/63,977.74 = 21,580.36/x
  3. Step 3: Cross multiply
    42,625.54x = 63,977.74 × 21,580.36
  4. Step 4: Simplify right side
    42,625.54x = 1,380,662,767.18
  5. Step 5: Solve for x
    x = 1,380,662,767.18/42,625.54
  6. Step 6: Final answer
    x = 32,390.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.