Home / 57,105.74-78,804.95-31,611.56

Finding the Fourth Proportional to 57,105.74, 78,804.95 and 31,611.56

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Solution

The fourth proportional to 57,105.74, 78,804.95 and 31,611.56 is: 43,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,105.74 : 78,804.95 = 31,611.56 : x
  2. Step 2: Convert to fraction form
    57,105.74/78,804.95 = 31,611.56/x
  3. Step 3: Cross multiply
    57,105.74x = 78,804.95 × 31,611.56
  4. Step 4: Simplify right side
    57,105.74x = 2,491,146,853.14
  5. Step 5: Solve for x
    x = 2,491,146,853.14/57,105.74
  6. Step 6: Final answer
    x = 43,623.40

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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.