Home / 56,519.75-78,000.90-31,369.25

Finding the Fourth Proportional to 56,519.75, 78,000.90 and 31,369.25

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Solution

The fourth proportional to 56,519.75, 78,000.90 and 31,369.25 is: 43,291.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,519.75 : 78,000.90 = 31,369.25 : x
  2. Step 2: Convert to fraction form
    56,519.75/78,000.90 = 31,369.25/x
  3. Step 3: Cross multiply
    56,519.75x = 78,000.90 × 31,369.25
  4. Step 4: Simplify right side
    56,519.75x = 2,446,829,732.33
  5. Step 5: Solve for x
    x = 2,446,829,732.33/56,519.75
  6. Step 6: Final answer
    x = 43,291.59

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1.5x scale

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.