Home / 56,733.82-78,292-31,239.65

Finding the Fourth Proportional to 56,733.82, 78,292 and 31,239.65

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Solution

The fourth proportional to 56,733.82, 78,292 and 31,239.65 is: 43,110.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,733.82 : 78,292 = 31,239.65 : x
  2. Step 2: Convert to fraction form
    56,733.82/78,292 = 31,239.65/x
  3. Step 3: Cross multiply
    56,733.82x = 78,292 × 31,239.65
  4. Step 4: Simplify right side
    56,733.82x = 2,445,814,677.80
  5. Step 5: Solve for x
    x = 2,445,814,677.80/56,733.82
  6. Step 6: Final answer
    x = 43,110.35

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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.