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Finding the Fourth Proportional to 56,394, 84,592.35 and 18,954.54

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Solution

The fourth proportional to 56,394, 84,592.35 and 18,954.54 is: 28,432.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,394 : 84,592.35 = 18,954.54 : x
  2. Step 2: Convert to fraction form
    56,394/84,592.35 = 18,954.54/x
  3. Step 3: Cross multiply
    56,394x = 84,592.35 × 18,954.54
  4. Step 4: Simplify right side
    56,394x = 1,603,409,081.77
  5. Step 5: Solve for x
    x = 1,603,409,081.77/56,394
  6. Step 6: Final answer
    x = 28,432.26

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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.