Home / 56,472.05-84,690.39-20,443.95

Finding the Fourth Proportional to 56,472.05, 84,690.39 and 20,443.95

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Solution

The fourth proportional to 56,472.05, 84,690.39 and 20,443.95 is: 30,659.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,472.05 : 84,690.39 = 20,443.95 : x
  2. Step 2: Convert to fraction form
    56,472.05/84,690.39 = 20,443.95/x
  3. Step 3: Cross multiply
    56,472.05x = 84,690.39 × 20,443.95
  4. Step 4: Simplify right side
    56,472.05x = 1,731,406,339.56
  5. Step 5: Solve for x
    x = 1,731,406,339.56/56,472.05
  6. Step 6: Final answer
    x = 30,659.53

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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.