Home / 57,637.75-79,540.10-31,141.75

Finding the Fourth Proportional to 57,637.75, 79,540.10 and 31,141.75

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Solution

The fourth proportional to 57,637.75, 79,540.10 and 31,141.75 is: 42,975.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,637.75 : 79,540.10 = 31,141.75 : x
  2. Step 2: Convert to fraction form
    57,637.75/79,540.10 = 31,141.75/x
  3. Step 3: Cross multiply
    57,637.75x = 79,540.10 × 31,141.75
  4. Step 4: Simplify right side
    57,637.75x = 2,477,017,909.18
  5. Step 5: Solve for x
    x = 2,477,017,909.18/57,637.75
  6. Step 6: Final answer
    x = 42,975.62

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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.