Home / 51,650.49-71,274.68-28,987.36

Finding the Fourth Proportional to 51,650.49, 71,274.68 and 28,987.36

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Solution

The fourth proportional to 51,650.49, 71,274.68 and 28,987.36 is: 40,000.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,650.49 : 71,274.68 = 28,987.36 : x
  2. Step 2: Convert to fraction form
    51,650.49/71,274.68 = 28,987.36/x
  3. Step 3: Cross multiply
    51,650.49x = 71,274.68 × 28,987.36
  4. Step 4: Simplify right side
    51,650.49x = 2,066,064,663.11
  5. Step 5: Solve for x
    x = 2,066,064,663.11/51,650.49
  6. Step 6: Final answer
    x = 40,000.88

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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.