Home / 56,416.12-84,633.92-18,979.80

Finding the Fourth Proportional to 56,416.12, 84,633.92 and 18,979.80

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Solution

The fourth proportional to 56,416.12, 84,633.92 and 18,979.80 is: 28,472.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,416.12 : 84,633.92 = 18,979.80 : x
  2. Step 2: Convert to fraction form
    56,416.12/84,633.92 = 18,979.80/x
  3. Step 3: Cross multiply
    56,416.12x = 84,633.92 × 18,979.80
  4. Step 4: Simplify right side
    56,416.12x = 1,606,334,874.82
  5. Step 5: Solve for x
    x = 1,606,334,874.82/56,416.12
  6. Step 6: Final answer
    x = 28,472.98

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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.