Home / 56,695.36-85,000.80-39,115.84

Finding the Fourth Proportional to 56,695.36, 85,000.80 and 39,115.84

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Solution

The fourth proportional to 56,695.36, 85,000.80 and 39,115.84 is: 58,644.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,695.36 : 85,000.80 = 39,115.84 : x
  2. Step 2: Convert to fraction form
    56,695.36/85,000.80 = 39,115.84/x
  3. Step 3: Cross multiply
    56,695.36x = 85,000.80 × 39,115.84
  4. Step 4: Simplify right side
    56,695.36x = 3,324,877,692.67
  5. Step 5: Solve for x
    x = 3,324,877,692.67/56,695.36
  6. Step 6: Final answer
    x = 58,644.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.