Home / 77,710.14-116,565.20-51,408.72

Finding the Fourth Proportional to 77,710.14, 116,565.20 and 51,408.72

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Solution

The fourth proportional to 77,710.14, 116,565.20 and 51,408.72 is: 77,113.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,710.14 : 116,565.20 = 51,408.72 : x
  2. Step 2: Convert to fraction form
    77,710.14/116,565.20 = 51,408.72/x
  3. Step 3: Cross multiply
    77,710.14x = 116,565.20 × 51,408.72
  4. Step 4: Simplify right side
    77,710.14x = 5,992,467,471.50
  5. Step 5: Solve for x
    x = 5,992,467,471.50/77,710.14
  6. Step 6: Final answer
    x = 77,113.07

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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.