Home / 55,355.28-76,396.43-31,156.98

Finding the Fourth Proportional to 55,355.28, 76,396.43 and 31,156.98

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Solution

The fourth proportional to 55,355.28, 76,396.43 and 31,156.98 is: 43,000.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,355.28 : 76,396.43 = 31,156.98 : x
  2. Step 2: Convert to fraction form
    55,355.28/76,396.43 = 31,156.98/x
  3. Step 3: Cross multiply
    55,355.28x = 76,396.43 × 31,156.98
  4. Step 4: Simplify right side
    55,355.28x = 2,380,281,674.69
  5. Step 5: Solve for x
    x = 2,380,281,674.69/55,355.28
  6. Step 6: Final answer
    x = 43,000.09

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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.