Home / 86,921.16-120,049.92-58,577.64

Finding the Fourth Proportional to 86,921.16, 120,049.92 and 58,577.64

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Solution

The fourth proportional to 86,921.16, 120,049.92 and 58,577.64 is: 80,903.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,921.16 : 120,049.92 = 58,577.64 : x
  2. Step 2: Convert to fraction form
    86,921.16/120,049.92 = 58,577.64/x
  3. Step 3: Cross multiply
    86,921.16x = 120,049.92 × 58,577.64
  4. Step 4: Simplify right side
    86,921.16x = 7,032,240,995.79
  5. Step 5: Solve for x
    x = 7,032,240,995.79/86,921.16
  6. Step 6: Final answer
    x = 80,903.67

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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.