Home / 87,557.64-120,829.44-51,760.56

Finding the Fourth Proportional to 87,557.64, 120,829.44 and 51,760.56

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Solution

The fourth proportional to 87,557.64, 120,829.44 and 51,760.56 is: 71,429.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,557.64 : 120,829.44 = 51,760.56 : x
  2. Step 2: Convert to fraction form
    87,557.64/120,829.44 = 51,760.56/x
  3. Step 3: Cross multiply
    87,557.64x = 120,829.44 × 51,760.56
  4. Step 4: Simplify right side
    87,557.64x = 6,254,199,478.89
  5. Step 5: Solve for x
    x = 6,254,199,478.89/87,557.64
  6. Step 6: Final answer
    x = 71,429.51

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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.