Home / 51,928.52-77,779.78-34,139.09

Finding the Fourth Proportional to 51,928.52, 77,779.78 and 34,139.09

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Solution

The fourth proportional to 51,928.52, 77,779.78 and 34,139.09 is: 51,134.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,928.52 : 77,779.78 = 34,139.09 : x
  2. Step 2: Convert to fraction form
    51,928.52/77,779.78 = 34,139.09/x
  3. Step 3: Cross multiply
    51,928.52x = 77,779.78 × 34,139.09
  4. Step 4: Simplify right side
    51,928.52x = 2,655,331,018.70
  5. Step 5: Solve for x
    x = 2,655,331,018.70/51,928.52
  6. Step 6: Final answer
    x = 51,134.35

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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.