Home / 55,368.15-83,031.76-19,819.84

Finding the Fourth Proportional to 55,368.15, 83,031.76 and 19,819.84

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Solution

The fourth proportional to 55,368.15, 83,031.76 and 19,819.84 is: 29,722.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,368.15 : 83,031.76 = 19,819.84 : x
  2. Step 2: Convert to fraction form
    55,368.15/83,031.76 = 19,819.84/x
  3. Step 3: Cross multiply
    55,368.15x = 83,031.76 × 19,819.84
  4. Step 4: Simplify right side
    55,368.15x = 1,645,676,198.12
  5. Step 5: Solve for x
    x = 1,645,676,198.12/55,368.15
  6. Step 6: Final answer
    x = 29,722.43

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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.