Home / 53,087.72-73,261.40-29,213.78

Finding the Fourth Proportional to 53,087.72, 73,261.40 and 29,213.78

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Solution

The fourth proportional to 53,087.72, 73,261.40 and 29,213.78 is: 40,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,087.72 : 73,261.40 = 29,213.78 : x
  2. Step 2: Convert to fraction form
    53,087.72/73,261.40 = 29,213.78/x
  3. Step 3: Cross multiply
    53,087.72x = 73,261.40 × 29,213.78
  4. Step 4: Simplify right side
    53,087.72x = 2,140,241,909.72
  5. Step 5: Solve for x
    x = 2,140,241,909.72/53,087.72
  6. Step 6: Final answer
    x = 40,315.20

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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.