Home / 56,143.08-77,475.42-30,992.04

Finding the Fourth Proportional to 56,143.08, 77,475.42 and 30,992.04

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Solution

The fourth proportional to 56,143.08, 77,475.42 and 30,992.04 is: 42,767.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,143.08 : 77,475.42 = 30,992.04 : x
  2. Step 2: Convert to fraction form
    56,143.08/77,475.42 = 30,992.04/x
  3. Step 3: Cross multiply
    56,143.08x = 77,475.42 × 30,992.04
  4. Step 4: Simplify right side
    56,143.08x = 2,401,121,315.66
  5. Step 5: Solve for x
    x = 2,401,121,315.66/56,143.08
  6. Step 6: Final answer
    x = 42,767.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.