Home / 52,167.80-78,217.12-18,883.52

Finding the Fourth Proportional to 52,167.80, 78,217.12 and 18,883.52

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Solution

The fourth proportional to 52,167.80, 78,217.12 and 18,883.52 is: 28,312.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,167.80 : 78,217.12 = 18,883.52 : x
  2. Step 2: Convert to fraction form
    52,167.80/78,217.12 = 18,883.52/x
  3. Step 3: Cross multiply
    52,167.80x = 78,217.12 × 18,883.52
  4. Step 4: Simplify right side
    52,167.80x = 1,477,014,549.86
  5. Step 5: Solve for x
    x = 1,477,014,549.86/52,167.80
  6. Step 6: Final answer
    x = 28,312.76

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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.