Home / 77,679.30-116,438.14-52,721.38

Finding the Fourth Proportional to 77,679.30, 116,438.14 and 52,721.38

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Solution

The fourth proportional to 77,679.30, 116,438.14 and 52,721.38 is: 79,027.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,679.30 : 116,438.14 = 52,721.38 : x
  2. Step 2: Convert to fraction form
    77,679.30/116,438.14 = 52,721.38/x
  3. Step 3: Cross multiply
    77,679.30x = 116,438.14 × 52,721.38
  4. Step 4: Simplify right side
    77,679.30x = 6,138,779,425.43
  5. Step 5: Solve for x
    x = 6,138,779,425.43/77,679.30
  6. Step 6: Final answer
    x = 79,027.22

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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.