Home / 55,457.82-76,534.20-31,266.90

Finding the Fourth Proportional to 55,457.82, 76,534.20 and 31,266.90

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Solution

The fourth proportional to 55,457.82, 76,534.20 and 31,266.90 is: 43,149.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,457.82 : 76,534.20 = 31,266.90 : x
  2. Step 2: Convert to fraction form
    55,457.82/76,534.20 = 31,266.90/x
  3. Step 3: Cross multiply
    55,457.82x = 76,534.20 × 31,266.90
  4. Step 4: Simplify right side
    55,457.82x = 2,392,987,177.98
  5. Step 5: Solve for x
    x = 2,392,987,177.98/55,457.82
  6. Step 6: Final answer
    x = 43,149.68

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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.