Home / 52,174.20-78,242.72-18,885.63

Finding the Fourth Proportional to 52,174.20, 78,242.72 and 18,885.63

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Solution

The fourth proportional to 52,174.20, 78,242.72 and 18,885.63 is: 28,321.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,174.20 : 78,242.72 = 18,885.63 : x
  2. Step 2: Convert to fraction form
    52,174.20/78,242.72 = 18,885.63/x
  3. Step 3: Cross multiply
    52,174.20x = 78,242.72 × 18,885.63
  4. Step 4: Simplify right side
    52,174.20x = 1,477,662,965.69
  5. Step 5: Solve for x
    x = 1,477,662,965.69/52,174.20
  6. Step 6: Final answer
    x = 28,321.72

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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.