Home / 55,187.27-76,158.58-31,313.88

Finding the Fourth Proportional to 55,187.27, 76,158.58 and 31,313.88

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Solution

The fourth proportional to 55,187.27, 76,158.58 and 31,313.88 is: 43,213.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,187.27 : 76,158.58 = 31,313.88 : x
  2. Step 2: Convert to fraction form
    55,187.27/76,158.58 = 31,313.88/x
  3. Step 3: Cross multiply
    55,187.27x = 76,158.58 × 31,313.88
  4. Step 4: Simplify right side
    55,187.27x = 2,384,820,615.52
  5. Step 5: Solve for x
    x = 2,384,820,615.52/55,187.27
  6. Step 6: Final answer
    x = 43,213.24

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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.