Home / 56,708.06-78,260.20-31,558.10

Finding the Fourth Proportional to 56,708.06, 78,260.20 and 31,558.10

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Solution

The fourth proportional to 56,708.06, 78,260.20 and 31,558.10 is: 43,551.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,708.06 : 78,260.20 = 31,558.10 : x
  2. Step 2: Convert to fraction form
    56,708.06/78,260.20 = 31,558.10/x
  3. Step 3: Cross multiply
    56,708.06x = 78,260.20 × 31,558.10
  4. Step 4: Simplify right side
    56,708.06x = 2,469,743,217.62
  5. Step 5: Solve for x
    x = 2,469,743,217.62/56,708.06
  6. Step 6: Final answer
    x = 43,551.89

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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.