Home / 56,891.72-85,397.70-31,953.08

Finding the Fourth Proportional to 56,891.72, 85,397.70 and 31,953.08

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Solution

The fourth proportional to 56,891.72, 85,397.70 and 31,953.08 is: 47,963.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,891.72 : 85,397.70 = 31,953.08 : x
  2. Step 2: Convert to fraction form
    56,891.72/85,397.70 = 31,953.08/x
  3. Step 3: Cross multiply
    56,891.72x = 85,397.70 × 31,953.08
  4. Step 4: Simplify right side
    56,891.72x = 2,728,719,539.92
  5. Step 5: Solve for x
    x = 2,728,719,539.92/56,891.72
  6. Step 6: Final answer
    x = 47,963.39

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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.