Home / 57,743.63-79,686.45-31,247.63

Finding the Fourth Proportional to 57,743.63, 79,686.45 and 31,247.63

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Solution

The fourth proportional to 57,743.63, 79,686.45 and 31,247.63 is: 43,121.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,743.63 : 79,686.45 = 31,247.63 : x
  2. Step 2: Convert to fraction form
    57,743.63/79,686.45 = 31,247.63/x
  3. Step 3: Cross multiply
    57,743.63x = 79,686.45 × 31,247.63
  4. Step 4: Simplify right side
    57,743.63x = 2,490,012,705.61
  5. Step 5: Solve for x
    x = 2,490,012,705.61/57,743.63
  6. Step 6: Final answer
    x = 43,121.86

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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.