Home / 76,964.85-106,235.69-45,146.61

Finding the Fourth Proportional to 76,964.85, 106,235.69 and 45,146.61

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Solution

The fourth proportional to 76,964.85, 106,235.69 and 45,146.61 is: 62,316.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,964.85 : 106,235.69 = 45,146.61 : x
  2. Step 2: Convert to fraction form
    76,964.85/106,235.69 = 45,146.61/x
  3. Step 3: Cross multiply
    76,964.85x = 106,235.69 × 45,146.61
  4. Step 4: Simplify right side
    76,964.85x = 4,796,181,038.78
  5. Step 5: Solve for x
    x = 4,796,181,038.78/76,964.85
  6. Step 6: Final answer
    x = 62,316.51

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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.