Home / 77,438.24-116,001.84-65,540.96

Finding the Fourth Proportional to 77,438.24, 116,001.84 and 65,540.96

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Solution

The fourth proportional to 77,438.24, 116,001.84 and 65,540.96 is: 98,179.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,438.24 : 116,001.84 = 65,540.96 : x
  2. Step 2: Convert to fraction form
    77,438.24/116,001.84 = 65,540.96/x
  3. Step 3: Cross multiply
    77,438.24x = 116,001.84 × 65,540.96
  4. Step 4: Simplify right side
    77,438.24x = 7,602,871,955.37
  5. Step 5: Solve for x
    x = 7,602,871,955.37/77,438.24
  6. Step 6: Final answer
    x = 98,179.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.