Home / 57,076.98-78,748.38-34,422.90

Finding the Fourth Proportional to 57,076.98, 78,748.38 and 34,422.90

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Solution

The fourth proportional to 57,076.98, 78,748.38 and 34,422.90 is: 47,492.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,076.98 : 78,748.38 = 34,422.90 : x
  2. Step 2: Convert to fraction form
    57,076.98/78,748.38 = 34,422.90/x
  3. Step 3: Cross multiply
    57,076.98x = 78,748.38 × 34,422.90
  4. Step 4: Simplify right side
    57,076.98x = 2,710,747,609.90
  5. Step 5: Solve for x
    x = 2,710,747,609.90/57,076.98
  6. Step 6: Final answer
    x = 47,492.84

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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.