Home / 56,868.12-85,283.13-18,908.64

Finding the Fourth Proportional to 56,868.12, 85,283.13 and 18,908.64

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Solution

The fourth proportional to 56,868.12, 85,283.13 and 18,908.64 is: 28,356.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,868.12 : 85,283.13 = 18,908.64 : x
  2. Step 2: Convert to fraction form
    56,868.12/85,283.13 = 18,908.64/x
  3. Step 3: Cross multiply
    56,868.12x = 85,283.13 × 18,908.64
  4. Step 4: Simplify right side
    56,868.12x = 1,612,588,003.24
  5. Step 5: Solve for x
    x = 1,612,588,003.24/56,868.12
  6. Step 6: Final answer
    x = 28,356.63

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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.