Home / 50,815.16-76,210.48-21,216.95

Finding the Fourth Proportional to 50,815.16, 76,210.48 and 21,216.95

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Solution

The fourth proportional to 50,815.16, 76,210.48 and 21,216.95 is: 31,820.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,815.16 : 76,210.48 = 21,216.95 : x
  2. Step 2: Convert to fraction form
    50,815.16/76,210.48 = 21,216.95/x
  3. Step 3: Cross multiply
    50,815.16x = 76,210.48 × 21,216.95
  4. Step 4: Simplify right side
    50,815.16x = 1,616,953,943.64
  5. Step 5: Solve for x
    x = 1,616,953,943.64/50,815.16
  6. Step 6: Final answer
    x = 31,820.31

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1.5x scale

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.