Home / 56,939.34-78,576.30-31,788.84

Finding the Fourth Proportional to 56,939.34, 78,576.30 and 31,788.84

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Solution

The fourth proportional to 56,939.34, 78,576.30 and 31,788.84 is: 43,868.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,939.34 : 78,576.30 = 31,788.84 : x
  2. Step 2: Convert to fraction form
    56,939.34/78,576.30 = 31,788.84/x
  3. Step 3: Cross multiply
    56,939.34x = 78,576.30 × 31,788.84
  4. Step 4: Simplify right side
    56,939.34x = 2,497,849,428.49
  5. Step 5: Solve for x
    x = 2,497,849,428.49/56,939.34
  6. Step 6: Final answer
    x = 43,868.61

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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.