Home / 55,383.57-76,419.11-31,508.85

Finding the Fourth Proportional to 55,383.57, 76,419.11 and 31,508.85

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Solution

The fourth proportional to 55,383.57, 76,419.11 and 31,508.85 is: 43,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,383.57 : 76,419.11 = 31,508.85 : x
  2. Step 2: Convert to fraction form
    55,383.57/76,419.11 = 31,508.85/x
  3. Step 3: Cross multiply
    55,383.57x = 76,419.11 × 31,508.85
  4. Step 4: Simplify right side
    55,383.57x = 2,407,878,116.58
  5. Step 5: Solve for x
    x = 2,407,878,116.58/55,383.57
  6. Step 6: Final answer
    x = 43,476.40

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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.