Home / 55,005.40-82,529.70-21,719.80

Finding the Fourth Proportional to 55,005.40, 82,529.70 and 21,719.80

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Solution

The fourth proportional to 55,005.40, 82,529.70 and 21,719.80 is: 32,588.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,005.40 : 82,529.70 = 21,719.80 : x
  2. Step 2: Convert to fraction form
    55,005.40/82,529.70 = 21,719.80/x
  3. Step 3: Cross multiply
    55,005.40x = 82,529.70 × 21,719.80
  4. Step 4: Simplify right side
    55,005.40x = 1,792,528,578.06
  5. Step 5: Solve for x
    x = 1,792,528,578.06/55,005.40
  6. Step 6: Final answer
    x = 32,588.23

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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.