Home / 55,087.48-76,018.26-31,212.76

Finding the Fourth Proportional to 55,087.48, 76,018.26 and 31,212.76

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Solution

The fourth proportional to 55,087.48, 76,018.26 and 31,212.76 is: 43,072.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,087.48 : 76,018.26 = 31,212.76 : x
  2. Step 2: Convert to fraction form
    55,087.48/76,018.26 = 31,212.76/x
  3. Step 3: Cross multiply
    55,087.48x = 76,018.26 × 31,212.76
  4. Step 4: Simplify right side
    55,087.48x = 2,372,739,705.00
  5. Step 5: Solve for x
    x = 2,372,739,705.00/55,087.48
  6. Step 6: Final answer
    x = 43,072.21

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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.