Home / 55,087.34-76,023.66-31,221.74

Finding the Fourth Proportional to 55,087.34, 76,023.66 and 31,221.74

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Solution

The fourth proportional to 55,087.34, 76,023.66 and 31,221.74 is: 43,087.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,087.34 : 76,023.66 = 31,221.74 : x
  2. Step 2: Convert to fraction form
    55,087.34/76,023.66 = 31,221.74/x
  3. Step 3: Cross multiply
    55,087.34x = 76,023.66 × 31,221.74
  4. Step 4: Simplify right side
    55,087.34x = 2,373,590,946.37
  5. Step 5: Solve for x
    x = 2,373,590,946.37/55,087.34
  6. Step 6: Final answer
    x = 43,087.78

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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.