Home / 88,209.64-121,729.38-48,465.64

Finding the Fourth Proportional to 88,209.64, 121,729.38 and 48,465.64

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Solution

The fourth proportional to 88,209.64, 121,729.38 and 48,465.64 is: 66,882.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,209.64 : 121,729.38 = 48,465.64 : x
  2. Step 2: Convert to fraction form
    88,209.64/121,729.38 = 48,465.64/x
  3. Step 3: Cross multiply
    88,209.64x = 121,729.38 × 48,465.64
  4. Step 4: Simplify right side
    88,209.64x = 5,899,692,308.50
  5. Step 5: Solve for x
    x = 5,899,692,308.50/88,209.64
  6. Step 6: Final answer
    x = 66,882.63

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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.