Home / 53,137.34-79,704.68-21,538.95

Finding the Fourth Proportional to 53,137.34, 79,704.68 and 21,538.95

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Solution

The fourth proportional to 53,137.34, 79,704.68 and 21,538.95 is: 32,307.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,137.34 : 79,704.68 = 21,538.95 : x
  2. Step 2: Convert to fraction form
    53,137.34/79,704.68 = 21,538.95/x
  3. Step 3: Cross multiply
    53,137.34x = 79,704.68 × 21,538.95
  4. Step 4: Simplify right side
    53,137.34x = 1,716,755,228.69
  5. Step 5: Solve for x
    x = 1,716,755,228.69/53,137.34
  6. Step 6: Final answer
    x = 32,307.89

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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.