Home / 57,365.76-79,169.02-31,878.12

Finding the Fourth Proportional to 57,365.76, 79,169.02 and 31,878.12

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Solution

The fourth proportional to 57,365.76, 79,169.02 and 31,878.12 is: 43,994.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,365.76 : 79,169.02 = 31,878.12 : x
  2. Step 2: Convert to fraction form
    57,365.76/79,169.02 = 31,878.12/x
  3. Step 3: Cross multiply
    57,365.76x = 79,169.02 × 31,878.12
  4. Step 4: Simplify right side
    57,365.76x = 2,523,759,519.84
  5. Step 5: Solve for x
    x = 2,523,759,519.84/57,365.76
  6. Step 6: Final answer
    x = 43,994.18

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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.