Home / 49,842.18-68,767-28,330.31

Finding the Fourth Proportional to 49,842.18, 68,767 and 28,330.31

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Solution

The fourth proportional to 49,842.18, 68,767 and 28,330.31 is: 39,087.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,842.18 : 68,767 = 28,330.31 : x
  2. Step 2: Convert to fraction form
    49,842.18/68,767 = 28,330.31/x
  3. Step 3: Cross multiply
    49,842.18x = 68,767 × 28,330.31
  4. Step 4: Simplify right side
    49,842.18x = 1,948,190,427.77
  5. Step 5: Solve for x
    x = 1,948,190,427.77/49,842.18
  6. Step 6: Final answer
    x = 39,087.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.