Home / 87,643.83-120,973.25-51,846.28

Finding the Fourth Proportional to 87,643.83, 120,973.25 and 51,846.28

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Solution

The fourth proportional to 87,643.83, 120,973.25 and 51,846.28 is: 71,562.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,643.83 : 120,973.25 = 51,846.28 : x
  2. Step 2: Convert to fraction form
    87,643.83/120,973.25 = 51,846.28/x
  3. Step 3: Cross multiply
    87,643.83x = 120,973.25 × 51,846.28
  4. Step 4: Simplify right side
    87,643.83x = 6,272,012,992.01
  5. Step 5: Solve for x
    x = 6,272,012,992.01/87,643.83
  6. Step 6: Final answer
    x = 71,562.52

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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.