Home / 55,085.37-76,020.87-31,219.74

Finding the Fourth Proportional to 55,085.37, 76,020.87 and 31,219.74

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Solution

The fourth proportional to 55,085.37, 76,020.87 and 31,219.74 is: 43,084.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,085.37 : 76,020.87 = 31,219.74 : x
  2. Step 2: Convert to fraction form
    55,085.37/76,020.87 = 31,219.74/x
  3. Step 3: Cross multiply
    55,085.37x = 76,020.87 × 31,219.74
  4. Step 4: Simplify right side
    55,085.37x = 2,373,351,795.97
  5. Step 5: Solve for x
    x = 2,373,351,795.97/55,085.37
  6. Step 6: Final answer
    x = 43,084.98

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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.