Home / 55,512.36-76,607.64-31,638.96

Finding the Fourth Proportional to 55,512.36, 76,607.64 and 31,638.96

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Solution

The fourth proportional to 55,512.36, 76,607.64 and 31,638.96 is: 43,662.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,512.36 : 76,607.64 = 31,638.96 : x
  2. Step 2: Convert to fraction form
    55,512.36/76,607.64 = 31,638.96/x
  3. Step 3: Cross multiply
    55,512.36x = 76,607.64 × 31,638.96
  4. Step 4: Simplify right side
    55,512.36x = 2,423,786,057.65
  5. Step 5: Solve for x
    x = 2,423,786,057.65/55,512.36
  6. Step 6: Final answer
    x = 43,662.10

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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.