Home / 81,513.54-112,536.95-51,324.74

Finding the Fourth Proportional to 81,513.54, 112,536.95 and 51,324.74

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Solution

The fourth proportional to 81,513.54, 112,536.95 and 51,324.74 is: 70,858.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,513.54 : 112,536.95 = 51,324.74 : x
  2. Step 2: Convert to fraction form
    81,513.54/112,536.95 = 51,324.74/x
  3. Step 3: Cross multiply
    81,513.54x = 112,536.95 × 51,324.74
  4. Step 4: Simplify right side
    81,513.54x = 5,775,929,301.85
  5. Step 5: Solve for x
    x = 5,775,929,301.85/81,513.54
  6. Step 6: Final answer
    x = 70,858.53

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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.