Home / 81,335.53-112,227.08-51,103.34

Finding the Fourth Proportional to 81,335.53, 112,227.08 and 51,103.34

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Solution

The fourth proportional to 81,335.53, 112,227.08 and 51,103.34 is: 70,512.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,335.53 : 112,227.08 = 51,103.34 : x
  2. Step 2: Convert to fraction form
    81,335.53/112,227.08 = 51,103.34/x
  3. Step 3: Cross multiply
    81,335.53x = 112,227.08 × 51,103.34
  4. Step 4: Simplify right side
    81,335.53x = 5,735,178,374.37
  5. Step 5: Solve for x
    x = 5,735,178,374.37/81,335.53
  6. Step 6: Final answer
    x = 70,512.59

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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.