Home / 50,720.25-76,065.50-19,107.50

Finding the Fourth Proportional to 50,720.25, 76,065.50 and 19,107.50

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Solution

The fourth proportional to 50,720.25, 76,065.50 and 19,107.50 is: 28,655.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,720.25 : 76,065.50 = 19,107.50 : x
  2. Step 2: Convert to fraction form
    50,720.25/76,065.50 = 19,107.50/x
  3. Step 3: Cross multiply
    50,720.25x = 76,065.50 × 19,107.50
  4. Step 4: Simplify right side
    50,720.25x = 1,453,421,541.25
  5. Step 5: Solve for x
    x = 1,453,421,541.25/50,720.25
  6. Step 6: Final answer
    x = 28,655.65

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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.