Home / 55,997.90-77,277.11-30,847.40

Finding the Fourth Proportional to 55,997.90, 77,277.11 and 30,847.40

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Solution

The fourth proportional to 55,997.90, 77,277.11 and 30,847.40 is: 42,569.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,997.90 : 77,277.11 = 30,847.40 : x
  2. Step 2: Convert to fraction form
    55,997.90/77,277.11 = 30,847.40/x
  3. Step 3: Cross multiply
    55,997.90x = 77,277.11 × 30,847.40
  4. Step 4: Simplify right side
    55,997.90x = 2,383,797,672.18
  5. Step 5: Solve for x
    x = 2,383,797,672.18/55,997.90
  6. Step 6: Final answer
    x = 42,569.41

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1.5x scale

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.