Home / 51,213.96-70,637.94-39,141.72

Finding the Fourth Proportional to 51,213.96, 70,637.94 and 39,141.72

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Solution

The fourth proportional to 51,213.96, 70,637.94 and 39,141.72 is: 53,987.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,213.96 : 70,637.94 = 39,141.72 : x
  2. Step 2: Convert to fraction form
    51,213.96/70,637.94 = 39,141.72/x
  3. Step 3: Cross multiply
    51,213.96x = 70,637.94 × 39,141.72
  4. Step 4: Simplify right side
    51,213.96x = 2,764,890,468.86
  5. Step 5: Solve for x
    x = 2,764,890,468.86/51,213.96
  6. Step 6: Final answer
    x = 53,987.05

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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.