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Finding the Fourth Proportional to 84,021, 126,051.78 and 24,050.40

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Solution

The fourth proportional to 84,021, 126,051.78 and 24,050.40 is: 36,081.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,021 : 126,051.78 = 24,050.40 : x
  2. Step 2: Convert to fraction form
    84,021/126,051.78 = 24,050.40/x
  3. Step 3: Cross multiply
    84,021x = 126,051.78 × 24,050.40
  4. Step 4: Simplify right side
    84,021x = 3,031,595,729.71
  5. Step 5: Solve for x
    x = 3,031,595,729.71/84,021
  6. Step 6: Final answer
    x = 36,081.41

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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.