Home / 56,411.91-84,619.35-18,972.63

Finding the Fourth Proportional to 56,411.91, 84,619.35 and 18,972.63

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Solution

The fourth proportional to 56,411.91, 84,619.35 and 18,972.63 is: 28,459.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,411.91 : 84,619.35 = 18,972.63 : x
  2. Step 2: Convert to fraction form
    56,411.91/84,619.35 = 18,972.63/x
  3. Step 3: Cross multiply
    56,411.91x = 84,619.35 × 18,972.63
  4. Step 4: Simplify right side
    56,411.91x = 1,605,451,618.39
  5. Step 5: Solve for x
    x = 1,605,451,618.39/56,411.91
  6. Step 6: Final answer
    x = 28,459.44

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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.