Home / 76,120.92-105,147.27-58,434.48

Finding the Fourth Proportional to 76,120.92, 105,147.27 and 58,434.48

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Solution

The fourth proportional to 76,120.92, 105,147.27 and 58,434.48 is: 80,716.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,120.92 : 105,147.27 = 58,434.48 : x
  2. Step 2: Convert to fraction form
    76,120.92/105,147.27 = 58,434.48/x
  3. Step 3: Cross multiply
    76,120.92x = 105,147.27 × 58,434.48
  4. Step 4: Simplify right side
    76,120.92x = 6,144,226,045.87
  5. Step 5: Solve for x
    x = 6,144,226,045.87/76,120.92
  6. Step 6: Final answer
    x = 80,716.66

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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.