Home / 60,563.77-90,844.83-21,120.75

Finding the Fourth Proportional to 60,563.77, 90,844.83 and 21,120.75

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Solution

The fourth proportional to 60,563.77, 90,844.83 and 21,120.75 is: 31,680.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,563.77 : 90,844.83 = 21,120.75 : x
  2. Step 2: Convert to fraction form
    60,563.77/90,844.83 = 21,120.75/x
  3. Step 3: Cross multiply
    60,563.77x = 90,844.83 × 21,120.75
  4. Step 4: Simplify right side
    60,563.77x = 1,918,710,943.22
  5. Step 5: Solve for x
    x = 1,918,710,943.22/60,563.77
  6. Step 6: Final answer
    x = 31,680.84

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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.