Home / 52,213.38-78,319.62-12,770.16

Finding the Fourth Proportional to 52,213.38, 78,319.62 and 12,770.16

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Solution

The fourth proportional to 52,213.38, 78,319.62 and 12,770.16 is: 19,155.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,213.38 : 78,319.62 = 12,770.16 : x
  2. Step 2: Convert to fraction form
    52,213.38/78,319.62 = 12,770.16/x
  3. Step 3: Cross multiply
    52,213.38x = 78,319.62 × 12,770.16
  4. Step 4: Simplify right side
    52,213.38x = 1,000,154,078.54
  5. Step 5: Solve for x
    x = 1,000,154,078.54/52,213.38
  6. Step 6: Final answer
    x = 19,155.13

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1.5x scale

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.