Home / 55,209.88-76,183.91-31,013.56

Finding the Fourth Proportional to 55,209.88, 76,183.91 and 31,013.56

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Solution

The fourth proportional to 55,209.88, 76,183.91 and 31,013.56 is: 42,795.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,209.88 : 76,183.91 = 31,013.56 : x
  2. Step 2: Convert to fraction form
    55,209.88/76,183.91 = 31,013.56/x
  3. Step 3: Cross multiply
    55,209.88x = 76,183.91 × 31,013.56
  4. Step 4: Simplify right side
    55,209.88x = 2,362,734,263.82
  5. Step 5: Solve for x
    x = 2,362,734,263.82/55,209.88
  6. Step 6: Final answer
    x = 42,795.50

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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.