Home / 56,827.74-78,419.43-31,672.38

Finding the Fourth Proportional to 56,827.74, 78,419.43 and 31,672.38

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Solution

The fourth proportional to 56,827.74, 78,419.43 and 31,672.38 is: 43,706.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,827.74 : 78,419.43 = 31,672.38 : x
  2. Step 2: Convert to fraction form
    56,827.74/78,419.43 = 31,672.38/x
  3. Step 3: Cross multiply
    56,827.74x = 78,419.43 × 31,672.38
  4. Step 4: Simplify right side
    56,827.74x = 2,483,729,986.34
  5. Step 5: Solve for x
    x = 2,483,729,986.34/56,827.74
  6. Step 6: Final answer
    x = 43,706.30

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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.