Home / 55,236.90-76,227.45-31,364.09

Finding the Fourth Proportional to 55,236.90, 76,227.45 and 31,364.09

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Solution

The fourth proportional to 55,236.90, 76,227.45 and 31,364.09 is: 43,282.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,236.90 : 76,227.45 = 31,364.09 : x
  2. Step 2: Convert to fraction form
    55,236.90/76,227.45 = 31,364.09/x
  3. Step 3: Cross multiply
    55,236.90x = 76,227.45 × 31,364.09
  4. Step 4: Simplify right side
    55,236.90x = 2,390,804,221.13
  5. Step 5: Solve for x
    x = 2,390,804,221.13/55,236.90
  6. Step 6: Final answer
    x = 43,282.74

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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.