Home / 55,213.32-76,211.58-31,355.88

Finding the Fourth Proportional to 55,213.32, 76,211.58 and 31,355.88

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Solution

The fourth proportional to 55,213.32, 76,211.58 and 31,355.88 is: 43,280.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,213.32 : 76,211.58 = 31,355.88 : x
  2. Step 2: Convert to fraction form
    55,213.32/76,211.58 = 31,355.88/x
  3. Step 3: Cross multiply
    55,213.32x = 76,211.58 × 31,355.88
  4. Step 4: Simplify right side
    55,213.32x = 2,389,681,157.09
  5. Step 5: Solve for x
    x = 2,389,681,157.09/55,213.32
  6. Step 6: Final answer
    x = 43,280.88

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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.