Home / 57,345.89-79,134.63-31,853.90

Finding the Fourth Proportional to 57,345.89, 79,134.63 and 31,853.90

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Solution

The fourth proportional to 57,345.89, 79,134.63 and 31,853.90 is: 43,956.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,345.89 : 79,134.63 = 31,853.90 : x
  2. Step 2: Convert to fraction form
    57,345.89/79,134.63 = 31,853.90/x
  3. Step 3: Cross multiply
    57,345.89x = 79,134.63 × 31,853.90
  4. Step 4: Simplify right side
    57,345.89x = 2,520,746,194.88
  5. Step 5: Solve for x
    x = 2,520,746,194.88/57,345.89
  6. Step 6: Final answer
    x = 43,956.88

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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.