Home / 83,688.36-115,489.58-45,447.64

Finding the Fourth Proportional to 83,688.36, 115,489.58 and 45,447.64

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Solution

The fourth proportional to 83,688.36, 115,489.58 and 45,447.64 is: 62,717.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,688.36 : 115,489.58 = 45,447.64 : x
  2. Step 2: Convert to fraction form
    83,688.36/115,489.58 = 45,447.64/x
  3. Step 3: Cross multiply
    83,688.36x = 115,489.58 × 45,447.64
  4. Step 4: Simplify right side
    83,688.36x = 5,248,728,855.59
  5. Step 5: Solve for x
    x = 5,248,728,855.59/83,688.36
  6. Step 6: Final answer
    x = 62,717.55

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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.