Home / 55,242.88-76,235.70-31,370.09

Finding the Fourth Proportional to 55,242.88, 76,235.70 and 31,370.09

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Solution

The fourth proportional to 55,242.88, 76,235.70 and 31,370.09 is: 43,291.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,242.88 : 76,235.70 = 31,370.09 : x
  2. Step 2: Convert to fraction form
    55,242.88/76,235.70 = 31,370.09/x
  3. Step 3: Cross multiply
    55,242.88x = 76,235.70 × 31,370.09
  4. Step 4: Simplify right side
    55,242.88x = 2,391,520,691.79
  5. Step 5: Solve for x
    x = 2,391,520,691.79/55,242.88
  6. Step 6: Final answer
    x = 43,291.02

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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.