Home / 51,618.90-71,239.47-28,964.01

Finding the Fourth Proportional to 51,618.90, 71,239.47 and 28,964.01

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Solution

The fourth proportional to 51,618.90, 71,239.47 and 28,964.01 is: 39,973.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,618.90 : 71,239.47 = 28,964.01 : x
  2. Step 2: Convert to fraction form
    51,618.90/71,239.47 = 28,964.01/x
  3. Step 3: Cross multiply
    51,618.90x = 71,239.47 × 28,964.01
  4. Step 4: Simplify right side
    51,618.90x = 2,063,380,721.47
  5. Step 5: Solve for x
    x = 2,063,380,721.47/51,618.90
  6. Step 6: Final answer
    x = 39,973.36

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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.