Home / 56,769.13-78,343.82-31,618.63

Finding the Fourth Proportional to 56,769.13, 78,343.82 and 31,618.63

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Solution

The fourth proportional to 56,769.13, 78,343.82 and 31,618.63 is: 43,635.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,769.13 : 78,343.82 = 31,618.63 : x
  2. Step 2: Convert to fraction form
    56,769.13/78,343.82 = 31,618.63/x
  3. Step 3: Cross multiply
    56,769.13x = 78,343.82 × 31,618.63
  4. Step 4: Simplify right side
    56,769.13x = 2,477,124,257.37
  5. Step 5: Solve for x
    x = 2,477,124,257.37/56,769.13
  6. Step 6: Final answer
    x = 43,635.06

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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.