Home / 81,498.11-112,504.23-51,327.77

Finding the Fourth Proportional to 81,498.11, 112,504.23 and 51,327.77

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Solution

The fourth proportional to 81,498.11, 112,504.23 and 51,327.77 is: 70,855.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,498.11 : 112,504.23 = 51,327.77 : x
  2. Step 2: Convert to fraction form
    81,498.11/112,504.23 = 51,327.77/x
  3. Step 3: Cross multiply
    81,498.11x = 112,504.23 × 51,327.77
  4. Step 4: Simplify right side
    81,498.11x = 5,774,590,678.95
  5. Step 5: Solve for x
    x = 5,774,590,678.95/81,498.11
  6. Step 6: Final answer
    x = 70,855.52

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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.