Home / 51,309.34-76,975.54-18,031.70

Finding the Fourth Proportional to 51,309.34, 76,975.54 and 18,031.70

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Solution

The fourth proportional to 51,309.34, 76,975.54 and 18,031.70 is: 27,051.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,309.34 : 76,975.54 = 18,031.70 : x
  2. Step 2: Convert to fraction form
    51,309.34/76,975.54 = 18,031.70/x
  3. Step 3: Cross multiply
    51,309.34x = 76,975.54 × 18,031.70
  4. Step 4: Simplify right side
    51,309.34x = 1,387,999,844.62
  5. Step 5: Solve for x
    x = 1,387,999,844.62/51,309.34
  6. Step 6: Final answer
    x = 27,051.60

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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.