Home / 55,828.64-83,718.88-20,742.56

Finding the Fourth Proportional to 55,828.64, 83,718.88 and 20,742.56

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Solution

The fourth proportional to 55,828.64, 83,718.88 and 20,742.56 is: 31,104.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,828.64 : 83,718.88 = 20,742.56 : x
  2. Step 2: Convert to fraction form
    55,828.64/83,718.88 = 20,742.56/x
  3. Step 3: Cross multiply
    55,828.64x = 83,718.88 × 20,742.56
  4. Step 4: Simplify right side
    55,828.64x = 1,736,543,891.53
  5. Step 5: Solve for x
    x = 1,736,543,891.53/55,828.64
  6. Step 6: Final answer
    x = 31,104.89

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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.