Home / 70,252.22-105,388.06-28,689.50

Finding the Fourth Proportional to 70,252.22, 105,388.06 and 28,689.50

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Solution

The fourth proportional to 70,252.22, 105,388.06 and 28,689.50 is: 43,038.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,252.22 : 105,388.06 = 28,689.50 : x
  2. Step 2: Convert to fraction form
    70,252.22/105,388.06 = 28,689.50/x
  3. Step 3: Cross multiply
    70,252.22x = 105,388.06 × 28,689.50
  4. Step 4: Simplify right side
    70,252.22x = 3,023,530,747.37
  5. Step 5: Solve for x
    x = 3,023,530,747.37/70,252.22
  6. Step 6: Final answer
    x = 43,038.22

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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.