Home / 56,824.68-78,418.60-31,331.96

Finding the Fourth Proportional to 56,824.68, 78,418.60 and 31,331.96

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Solution

The fourth proportional to 56,824.68, 78,418.60 and 31,331.96 is: 43,238.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,824.68 : 78,418.60 = 31,331.96 : x
  2. Step 2: Convert to fraction form
    56,824.68/78,418.60 = 31,331.96/x
  3. Step 3: Cross multiply
    56,824.68x = 78,418.60 × 31,331.96
  4. Step 4: Simplify right side
    56,824.68x = 2,457,008,438.46
  5. Step 5: Solve for x
    x = 2,457,008,438.46/56,824.68
  6. Step 6: Final answer
    x = 43,238.40

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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.