Home / 56,691.75-78,234.63-31,541.25

Finding the Fourth Proportional to 56,691.75, 78,234.63 and 31,541.25

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Solution

The fourth proportional to 56,691.75, 78,234.63 and 31,541.25 is: 43,526.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,691.75 : 78,234.63 = 31,541.25 : x
  2. Step 2: Convert to fraction form
    56,691.75/78,234.63 = 31,541.25/x
  3. Step 3: Cross multiply
    56,691.75x = 78,234.63 × 31,541.25
  4. Step 4: Simplify right side
    56,691.75x = 2,467,618,023.49
  5. Step 5: Solve for x
    x = 2,467,618,023.49/56,691.75
  6. Step 6: Final answer
    x = 43,526.93

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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.