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Finding the Fourth Proportional to 56,398.62, 84,594.82 and 18,954.83

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Solution

The fourth proportional to 56,398.62, 84,594.82 and 18,954.83 is: 28,431.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,398.62 : 84,594.82 = 18,954.83 : x
  2. Step 2: Convert to fraction form
    56,398.62/84,594.82 = 18,954.83/x
  3. Step 3: Cross multiply
    56,398.62x = 84,594.82 × 18,954.83
  4. Step 4: Simplify right side
    56,398.62x = 1,603,480,102.46
  5. Step 5: Solve for x
    x = 1,603,480,102.46/56,398.62
  6. Step 6: Final answer
    x = 28,431.19

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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.