Home / 56,917.24-85,385.10-21,381.30

Finding the Fourth Proportional to 56,917.24, 85,385.10 and 21,381.30

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Solution

The fourth proportional to 56,917.24, 85,385.10 and 21,381.30 is: 32,075.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,917.24 : 85,385.10 = 21,381.30 : x
  2. Step 2: Convert to fraction form
    56,917.24/85,385.10 = 21,381.30/x
  3. Step 3: Cross multiply
    56,917.24x = 85,385.10 × 21,381.30
  4. Step 4: Simplify right side
    56,917.24x = 1,825,644,438.63
  5. Step 5: Solve for x
    x = 1,825,644,438.63/56,917.24
  6. Step 6: Final answer
    x = 32,075.42

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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.