Home / 50,815.47-76,210.95-21,217.26

Finding the Fourth Proportional to 50,815.47, 76,210.95 and 21,217.26

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Solution

The fourth proportional to 50,815.47, 76,210.95 and 21,217.26 is: 31,820.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,815.47 : 76,210.95 = 21,217.26 : x
  2. Step 2: Convert to fraction form
    50,815.47/76,210.95 = 21,217.26/x
  3. Step 3: Cross multiply
    50,815.47x = 76,210.95 × 21,217.26
  4. Step 4: Simplify right side
    50,815.47x = 1,616,987,541.00
  5. Step 5: Solve for x
    x = 1,616,987,541.00/50,815.47
  6. Step 6: Final answer
    x = 31,820.77

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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.