Home / 76,031.32-114,053.36-28,013

Finding the Fourth Proportional to 76,031.32, 114,053.36 and 28,013

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Solution

The fourth proportional to 76,031.32, 114,053.36 and 28,013 is: 42,021.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,031.32 : 114,053.36 = 28,013 : x
  2. Step 2: Convert to fraction form
    76,031.32/114,053.36 = 28,013/x
  3. Step 3: Cross multiply
    76,031.32x = 114,053.36 × 28,013
  4. Step 4: Simplify right side
    76,031.32x = 3,194,976,773.68
  5. Step 5: Solve for x
    x = 3,194,976,773.68/76,031.32
  6. Step 6: Final answer
    x = 42,021.85

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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.