Home / 87,918.85-121,327.83-47,633.60

Finding the Fourth Proportional to 87,918.85, 121,327.83 and 47,633.60

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Solution

The fourth proportional to 87,918.85, 121,327.83 and 47,633.60 is: 65,734.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,918.85 : 121,327.83 = 47,633.60 : x
  2. Step 2: Convert to fraction form
    87,918.85/121,327.83 = 47,633.60/x
  3. Step 3: Cross multiply
    87,918.85x = 121,327.83 × 47,633.60
  4. Step 4: Simplify right side
    87,918.85x = 5,779,281,323.09
  5. Step 5: Solve for x
    x = 5,779,281,323.09/87,918.85
  6. Step 6: Final answer
    x = 65,734.27

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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.