Home / 52,214.04-78,320.70-12,771.72

Finding the Fourth Proportional to 52,214.04, 78,320.70 and 12,771.72

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Solution

The fourth proportional to 52,214.04, 78,320.70 and 12,771.72 is: 19,157.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,214.04 : 78,320.70 = 12,771.72 : x
  2. Step 2: Convert to fraction form
    52,214.04/78,320.70 = 12,771.72/x
  3. Step 3: Cross multiply
    52,214.04x = 78,320.70 × 12,771.72
  4. Step 4: Simplify right side
    52,214.04x = 1,000,290,050.60
  5. Step 5: Solve for x
    x = 1,000,290,050.60/52,214.04
  6. Step 6: Final answer
    x = 19,157.49

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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.