Home / 56,519.12-77,996.60-31,368.62

Finding the Fourth Proportional to 56,519.12, 77,996.60 and 31,368.62

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Solution

The fourth proportional to 56,519.12, 77,996.60 and 31,368.62 is: 43,288.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,519.12 : 77,996.60 = 31,368.62 : x
  2. Step 2: Convert to fraction form
    56,519.12/77,996.60 = 31,368.62/x
  3. Step 3: Cross multiply
    56,519.12x = 77,996.60 × 31,368.62
  4. Step 4: Simplify right side
    56,519.12x = 2,446,645,706.69
  5. Step 5: Solve for x
    x = 2,446,645,706.69/56,519.12
  6. Step 6: Final answer
    x = 43,288.81

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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.