Home / 81,536.91-112,416.77-52,805.81

Finding the Fourth Proportional to 81,536.91, 112,416.77 and 52,805.81

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Solution

The fourth proportional to 81,536.91, 112,416.77 and 52,805.81 is: 72,804.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,536.91 : 112,416.77 = 52,805.81 : x
  2. Step 2: Convert to fraction form
    81,536.91/112,416.77 = 52,805.81/x
  3. Step 3: Cross multiply
    81,536.91x = 112,416.77 × 52,805.81
  4. Step 4: Simplify right side
    81,536.91x = 5,936,258,167.36
  5. Step 5: Solve for x
    x = 5,936,258,167.36/81,536.91
  6. Step 6: Final answer
    x = 72,804.55

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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.