Home / 87,999.55-121,407.49-57,801.26

Finding the Fourth Proportional to 87,999.55, 121,407.49 and 57,801.26

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Solution

The fourth proportional to 87,999.55, 121,407.49 and 57,801.26 is: 79,744.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,999.55 : 121,407.49 = 57,801.26 : x
  2. Step 2: Convert to fraction form
    87,999.55/121,407.49 = 57,801.26/x
  3. Step 3: Cross multiply
    87,999.55x = 121,407.49 × 57,801.26
  4. Step 4: Simplify right side
    87,999.55x = 7,017,505,895.44
  5. Step 5: Solve for x
    x = 7,017,505,895.44/87,999.55
  6. Step 6: Final answer
    x = 79,744.79

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1.5x scale

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.