Home / 57,371.95-79,173.14-31,878.21

Finding the Fourth Proportional to 57,371.95, 79,173.14 and 31,878.21

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Solution

The fourth proportional to 57,371.95, 79,173.14 and 31,878.21 is: 43,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,371.95 : 79,173.14 = 31,878.21 : x
  2. Step 2: Convert to fraction form
    57,371.95/79,173.14 = 31,878.21/x
  3. Step 3: Cross multiply
    57,371.95x = 79,173.14 × 31,878.21
  4. Step 4: Simplify right side
    57,371.95x = 2,523,897,823.89
  5. Step 5: Solve for x
    x = 2,523,897,823.89/57,371.95
  6. Step 6: Final answer
    x = 43,991.85

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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.