Home / 55,257.60-76,260.96-31,385.76

Finding the Fourth Proportional to 55,257.60, 76,260.96 and 31,385.76

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Solution

The fourth proportional to 55,257.60, 76,260.96 and 31,385.76 is: 43,315.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,257.60 : 76,260.96 = 31,385.76 : x
  2. Step 2: Convert to fraction form
    55,257.60/76,260.96 = 31,385.76/x
  3. Step 3: Cross multiply
    55,257.60x = 76,260.96 × 31,385.76
  4. Step 4: Simplify right side
    55,257.60x = 2,393,508,187.93
  5. Step 5: Solve for x
    x = 2,393,508,187.93/55,257.60
  6. Step 6: Final answer
    x = 43,315.46

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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.