Home / 87,203.22-120,319.88-49,477.47

Finding the Fourth Proportional to 87,203.22, 120,319.88 and 49,477.47

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Solution

The fourth proportional to 87,203.22, 120,319.88 and 49,477.47 is: 68,267.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,203.22 : 120,319.88 = 49,477.47 : x
  2. Step 2: Convert to fraction form
    87,203.22/120,319.88 = 49,477.47/x
  3. Step 3: Cross multiply
    87,203.22x = 120,319.88 × 49,477.47
  4. Step 4: Simplify right side
    87,203.22x = 5,953,122,832.83
  5. Step 5: Solve for x
    x = 5,953,122,832.83/87,203.22
  6. Step 6: Final answer
    x = 68,267.24

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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.