Home / 70,257.18-105,385.23-28,675.02

Finding the Fourth Proportional to 70,257.18, 105,385.23 and 28,675.02

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Solution

The fourth proportional to 70,257.18, 105,385.23 and 28,675.02 is: 43,012.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,257.18 : 105,385.23 = 28,675.02 : x
  2. Step 2: Convert to fraction form
    70,257.18/105,385.23 = 28,675.02/x
  3. Step 3: Cross multiply
    70,257.18x = 105,385.23 × 28,675.02
  4. Step 4: Simplify right side
    70,257.18x = 3,021,923,577.95
  5. Step 5: Solve for x
    x = 3,021,923,577.95/70,257.18
  6. Step 6: Final answer
    x = 43,012.31

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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.