Home / 56,734.20-78,290.04-31,239.52

Finding the Fourth Proportional to 56,734.20, 78,290.04 and 31,239.52

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Solution

The fourth proportional to 56,734.20, 78,290.04 and 31,239.52 is: 43,108.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,734.20 : 78,290.04 = 31,239.52 : x
  2. Step 2: Convert to fraction form
    56,734.20/78,290.04 = 31,239.52/x
  3. Step 3: Cross multiply
    56,734.20x = 78,290.04 × 31,239.52
  4. Step 4: Simplify right side
    56,734.20x = 2,445,743,270.38
  5. Step 5: Solve for x
    x = 2,445,743,270.38/56,734.20
  6. Step 6: Final answer
    x = 43,108.80

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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.