Home / 81,847.73-112,965.39-51,235.06

Finding the Fourth Proportional to 81,847.73, 112,965.39 and 51,235.06

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Solution

The fourth proportional to 81,847.73, 112,965.39 and 51,235.06 is: 70,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,847.73 : 112,965.39 = 51,235.06 : x
  2. Step 2: Convert to fraction form
    81,847.73/112,965.39 = 51,235.06/x
  3. Step 3: Cross multiply
    81,847.73x = 112,965.39 × 51,235.06
  4. Step 4: Simplify right side
    81,847.73x = 5,787,788,278.40
  5. Step 5: Solve for x
    x = 5,787,788,278.40/81,847.73
  6. Step 6: Final answer
    x = 70,714.10

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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.