Home / 76,900.24-106,122.20-42,906.66

Finding the Fourth Proportional to 76,900.24, 106,122.20 and 42,906.66

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Solution

The fourth proportional to 76,900.24, 106,122.20 and 42,906.66 is: 59,211.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,900.24 : 106,122.20 = 42,906.66 : x
  2. Step 2: Convert to fraction form
    76,900.24/106,122.20 = 42,906.66/x
  3. Step 3: Cross multiply
    76,900.24x = 106,122.20 × 42,906.66
  4. Step 4: Simplify right side
    76,900.24x = 4,553,349,379.65
  5. Step 5: Solve for x
    x = 4,553,349,379.65/76,900.24
  6. Step 6: Final answer
    x = 59,211.12

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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.