Home / 51,779.22-77,668.84-28,553.28

Finding the Fourth Proportional to 51,779.22, 77,668.84 and 28,553.28

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Solution

The fourth proportional to 51,779.22, 77,668.84 and 28,553.28 is: 42,829.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,779.22 : 77,668.84 = 28,553.28 : x
  2. Step 2: Convert to fraction form
    51,779.22/77,668.84 = 28,553.28/x
  3. Step 3: Cross multiply
    51,779.22x = 77,668.84 × 28,553.28
  4. Step 4: Simplify right side
    51,779.22x = 2,217,700,135.80
  5. Step 5: Solve for x
    x = 2,217,700,135.80/51,779.22
  6. Step 6: Final answer
    x = 42,829.93

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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.