Home / 70,188.63-105,283.40-28,072.24

Finding the Fourth Proportional to 70,188.63, 105,283.40 and 28,072.24

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Solution

The fourth proportional to 70,188.63, 105,283.40 and 28,072.24 is: 42,108.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,188.63 : 105,283.40 = 28,072.24 : x
  2. Step 2: Convert to fraction form
    70,188.63/105,283.40 = 28,072.24/x
  3. Step 3: Cross multiply
    70,188.63x = 105,283.40 × 28,072.24
  4. Step 4: Simplify right side
    70,188.63x = 2,955,540,872.82
  5. Step 5: Solve for x
    x = 2,955,540,872.82/70,188.63
  6. Step 6: Final answer
    x = 42,108.54

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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.