Home / 76,610.64-105,635.51-53,942.39

Finding the Fourth Proportional to 76,610.64, 105,635.51 and 53,942.39

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Solution

The fourth proportional to 76,610.64, 105,635.51 and 53,942.39 is: 74,379.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,610.64 : 105,635.51 = 53,942.39 : x
  2. Step 2: Convert to fraction form
    76,610.64/105,635.51 = 53,942.39/x
  3. Step 3: Cross multiply
    76,610.64x = 105,635.51 × 53,942.39
  4. Step 4: Simplify right side
    76,610.64x = 5,698,231,080.38
  5. Step 5: Solve for x
    x = 5,698,231,080.38/76,610.64
  6. Step 6: Final answer
    x = 74,379.11

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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.