Home / 55,728.15-76,904.84-31,855.34

Finding the Fourth Proportional to 55,728.15, 76,904.84 and 31,855.34

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Solution

The fourth proportional to 55,728.15, 76,904.84 and 31,855.34 is: 43,960.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,728.15 : 76,904.84 = 31,855.34 : x
  2. Step 2: Convert to fraction form
    55,728.15/76,904.84 = 31,855.34/x
  3. Step 3: Cross multiply
    55,728.15x = 76,904.84 × 31,855.34
  4. Step 4: Simplify right side
    55,728.15x = 2,449,829,520.96
  5. Step 5: Solve for x
    x = 2,449,829,520.96/55,728.15
  6. Step 6: Final answer
    x = 43,960.36

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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.