Home / 56,880.72-85,381.20-31,942.08

Finding the Fourth Proportional to 56,880.72, 85,381.20 and 31,942.08

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Solution

The fourth proportional to 56,880.72, 85,381.20 and 31,942.08 is: 47,946.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,880.72 : 85,381.20 = 31,942.08 : x
  2. Step 2: Convert to fraction form
    56,880.72/85,381.20 = 31,942.08/x
  3. Step 3: Cross multiply
    56,880.72x = 85,381.20 × 31,942.08
  4. Step 4: Simplify right side
    56,880.72x = 2,727,253,120.90
  5. Step 5: Solve for x
    x = 2,727,253,120.90/56,880.72
  6. Step 6: Final answer
    x = 47,946.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.