Home / 56,721.52-78,275.87-31,227.04

Finding the Fourth Proportional to 56,721.52, 78,275.87 and 31,227.04

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Solution

The fourth proportional to 56,721.52, 78,275.87 and 31,227.04 is: 43,093.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,721.52 : 78,275.87 = 31,227.04 : x
  2. Step 2: Convert to fraction form
    56,721.52/78,275.87 = 31,227.04/x
  3. Step 3: Cross multiply
    56,721.52x = 78,275.87 × 31,227.04
  4. Step 4: Simplify right side
    56,721.52x = 2,444,323,723.52
  5. Step 5: Solve for x
    x = 2,444,323,723.52/56,721.52
  6. Step 6: Final answer
    x = 43,093.41

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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.