Home / 64,179.36-88,590.96-38,686.64

Finding the Fourth Proportional to 64,179.36, 88,590.96 and 38,686.64

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Solution

The fourth proportional to 64,179.36, 88,590.96 and 38,686.64 is: 53,401.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,179.36 : 88,590.96 = 38,686.64 : x
  2. Step 2: Convert to fraction form
    64,179.36/88,590.96 = 38,686.64/x
  3. Step 3: Cross multiply
    64,179.36x = 88,590.96 × 38,686.64
  4. Step 4: Simplify right side
    64,179.36x = 3,427,286,133.82
  5. Step 5: Solve for x
    x = 3,427,286,133.82/64,179.36
  6. Step 6: Final answer
    x = 53,401.69

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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.