Home / 87,445.37-120,669.55-51,622.31

Finding the Fourth Proportional to 87,445.37, 120,669.55 and 51,622.31

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Solution

The fourth proportional to 87,445.37, 120,669.55 and 51,622.31 is: 71,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,445.37 : 120,669.55 = 51,622.31 : x
  2. Step 2: Convert to fraction form
    87,445.37/120,669.55 = 51,622.31/x
  3. Step 3: Cross multiply
    87,445.37x = 120,669.55 × 51,622.31
  4. Step 4: Simplify right side
    87,445.37x = 6,229,241,090.28
  5. Step 5: Solve for x
    x = 6,229,241,090.28/87,445.37
  6. Step 6: Final answer
    x = 71,235.80

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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.