Home / 55,518.88-76,589.84-40,372.64

Finding the Fourth Proportional to 55,518.88, 76,589.84 and 40,372.64

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Solution

The fourth proportional to 55,518.88, 76,589.84 and 40,372.64 is: 55,695.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,518.88 : 76,589.84 = 40,372.64 : x
  2. Step 2: Convert to fraction form
    55,518.88/76,589.84 = 40,372.64/x
  3. Step 3: Cross multiply
    55,518.88x = 76,589.84 × 40,372.64
  4. Step 4: Simplify right side
    55,518.88x = 3,092,134,037.98
  5. Step 5: Solve for x
    x = 3,092,134,037.98/55,518.88
  6. Step 6: Final answer
    x = 55,695.18

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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.