Home / 81,823.05-112,913.85-53,528.13

Finding the Fourth Proportional to 81,823.05, 112,913.85 and 53,528.13

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Solution

The fourth proportional to 81,823.05, 112,913.85 and 53,528.13 is: 73,867.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,823.05 : 112,913.85 = 53,528.13 : x
  2. Step 2: Convert to fraction form
    81,823.05/112,913.85 = 53,528.13/x
  3. Step 3: Cross multiply
    81,823.05x = 112,913.85 × 53,528.13
  4. Step 4: Simplify right side
    81,823.05x = 6,044,067,241.60
  5. Step 5: Solve for x
    x = 6,044,067,241.60/81,823.05
  6. Step 6: Final answer
    x = 73,867.54

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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.