Home / 67,928.07-101,896.79-28,445.43

Finding the Fourth Proportional to 67,928.07, 101,896.79 and 28,445.43

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Solution

The fourth proportional to 67,928.07, 101,896.79 and 28,445.43 is: 42,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,928.07 : 101,896.79 = 28,445.43 : x
  2. Step 2: Convert to fraction form
    67,928.07/101,896.79 = 28,445.43/x
  3. Step 3: Cross multiply
    67,928.07x = 101,896.79 × 28,445.43
  4. Step 4: Simplify right side
    67,928.07x = 2,898,497,864.94
  5. Step 5: Solve for x
    x = 2,898,497,864.94/67,928.07
  6. Step 6: Final answer
    x = 42,670.10

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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.