Home / 81,821.47-112,912.92-46,010.72

Finding the Fourth Proportional to 81,821.47, 112,912.92 and 46,010.72

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Solution

The fourth proportional to 81,821.47, 112,912.92 and 46,010.72 is: 63,494.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,821.47 : 112,912.92 = 46,010.72 : x
  2. Step 2: Convert to fraction form
    81,821.47/112,912.92 = 46,010.72/x
  3. Step 3: Cross multiply
    81,821.47x = 112,912.92 × 46,010.72
  4. Step 4: Simplify right side
    81,821.47x = 5,195,204,746.50
  5. Step 5: Solve for x
    x = 5,195,204,746.50/81,821.47
  6. Step 6: Final answer
    x = 63,494.40

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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.