Home / 87,325.31-120,508.93-47,581.31

Finding the Fourth Proportional to 87,325.31, 120,508.93 and 47,581.31

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Solution

The fourth proportional to 87,325.31, 120,508.93 and 47,581.31 is: 65,662.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,325.31 : 120,508.93 = 47,581.31 : x
  2. Step 2: Convert to fraction form
    87,325.31/120,508.93 = 47,581.31/x
  3. Step 3: Cross multiply
    87,325.31x = 120,508.93 × 47,581.31
  4. Step 4: Simplify right side
    87,325.31x = 5,733,973,116.85
  5. Step 5: Solve for x
    x = 5,733,973,116.85/87,325.31
  6. Step 6: Final answer
    x = 65,662.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.