Home / 56,864.11-85,315.04-17,421.61

Finding the Fourth Proportional to 56,864.11, 85,315.04 and 17,421.61

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Solution

The fourth proportional to 56,864.11, 85,315.04 and 17,421.61 is: 26,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,864.11 : 85,315.04 = 17,421.61 : x
  2. Step 2: Convert to fraction form
    56,864.11/85,315.04 = 17,421.61/x
  3. Step 3: Cross multiply
    56,864.11x = 85,315.04 × 17,421.61
  4. Step 4: Simplify right side
    56,864.11x = 1,486,325,354.01
  5. Step 5: Solve for x
    x = 1,486,325,354.01/56,864.11
  6. Step 6: Final answer
    x = 26,138.20

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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.