Home / 55,113.04-82,620.99-21,856.45

Finding the Fourth Proportional to 55,113.04, 82,620.99 and 21,856.45

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Solution

The fourth proportional to 55,113.04, 82,620.99 and 21,856.45 is: 32,765.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,113.04 : 82,620.99 = 21,856.45 : x
  2. Step 2: Convert to fraction form
    55,113.04/82,620.99 = 21,856.45/x
  3. Step 3: Cross multiply
    55,113.04x = 82,620.99 × 21,856.45
  4. Step 4: Simplify right side
    55,113.04x = 1,805,801,536.89
  5. Step 5: Solve for x
    x = 1,805,801,536.89/55,113.04
  6. Step 6: Final answer
    x = 32,765.41

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1.5x scale

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.