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Finding the Fourth Proportional to 52,956.98, 79,445.25 and 17,420.30

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Solution

The fourth proportional to 52,956.98, 79,445.25 and 17,420.30 is: 26,133.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,956.98 : 79,445.25 = 17,420.30 : x
  2. Step 2: Convert to fraction form
    52,956.98/79,445.25 = 17,420.30/x
  3. Step 3: Cross multiply
    52,956.98x = 79,445.25 × 17,420.30
  4. Step 4: Simplify right side
    52,956.98x = 1,383,960,088.58
  5. Step 5: Solve for x
    x = 1,383,960,088.58/52,956.98
  6. Step 6: Final answer
    x = 26,133.67

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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.