Home / 49,865.51-68,820.80-28,648.88

Finding the Fourth Proportional to 49,865.51, 68,820.80 and 28,648.88

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Solution

The fourth proportional to 49,865.51, 68,820.80 and 28,648.88 is: 39,539.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,865.51 : 68,820.80 = 28,648.88 : x
  2. Step 2: Convert to fraction form
    49,865.51/68,820.80 = 28,648.88/x
  3. Step 3: Cross multiply
    49,865.51x = 68,820.80 × 28,648.88
  4. Step 4: Simplify right side
    49,865.51x = 1,971,638,840.70
  5. Step 5: Solve for x
    x = 1,971,638,840.70/49,865.51
  6. Step 6: Final answer
    x = 39,539.13

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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.