Home / 55,347.28-76,380.09-30,196.78

Finding the Fourth Proportional to 55,347.28, 76,380.09 and 30,196.78

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Solution

The fourth proportional to 55,347.28, 76,380.09 and 30,196.78 is: 41,672.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,347.28 : 76,380.09 = 30,196.78 : x
  2. Step 2: Convert to fraction form
    55,347.28/76,380.09 = 30,196.78/x
  3. Step 3: Cross multiply
    55,347.28x = 76,380.09 × 30,196.78
  4. Step 4: Simplify right side
    55,347.28x = 2,306,432,774.11
  5. Step 5: Solve for x
    x = 2,306,432,774.11/55,347.28
  6. Step 6: Final answer
    x = 41,672.02

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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.