Home / 56,895.30-85,321.35-18,937.35

Finding the Fourth Proportional to 56,895.30, 85,321.35 and 18,937.35

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Solution

The fourth proportional to 56,895.30, 85,321.35 and 18,937.35 is: 28,398.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,895.30 : 85,321.35 = 18,937.35 : x
  2. Step 2: Convert to fraction form
    56,895.30/85,321.35 = 18,937.35/x
  3. Step 3: Cross multiply
    56,895.30x = 85,321.35 × 18,937.35
  4. Step 4: Simplify right side
    56,895.30x = 1,615,760,267.42
  5. Step 5: Solve for x
    x = 1,615,760,267.42/56,895.30
  6. Step 6: Final answer
    x = 28,398.84

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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.