Home / 55,089.37-76,021.75-31,223.76

Finding the Fourth Proportional to 55,089.37, 76,021.75 and 31,223.76

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Solution

The fourth proportional to 55,089.37, 76,021.75 and 31,223.76 is: 43,087.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,089.37 : 76,021.75 = 31,223.76 : x
  2. Step 2: Convert to fraction form
    55,089.37/76,021.75 = 31,223.76/x
  3. Step 3: Cross multiply
    55,089.37x = 76,021.75 × 31,223.76
  4. Step 4: Simplify right side
    55,089.37x = 2,373,684,876.78
  5. Step 5: Solve for x
    x = 2,373,684,876.78/55,089.37
  6. Step 6: Final answer
    x = 43,087.89

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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.