Home / 76,859.10-105,845.67-55,604.70

Finding the Fourth Proportional to 76,859.10, 105,845.67 and 55,604.70

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Solution

The fourth proportional to 76,859.10, 105,845.67 and 55,604.70 is: 76,575.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,859.10 : 105,845.67 = 55,604.70 : x
  2. Step 2: Convert to fraction form
    76,859.10/105,845.67 = 55,604.70/x
  3. Step 3: Cross multiply
    76,859.10x = 105,845.67 × 55,604.70
  4. Step 4: Simplify right side
    76,859.10x = 5,885,516,726.65
  5. Step 5: Solve for x
    x = 5,885,516,726.65/76,859.10
  6. Step 6: Final answer
    x = 76,575.41

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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.