Home / 52,536.90-78,810.30-20,939.34

Finding the Fourth Proportional to 52,536.90, 78,810.30 and 20,939.34

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Solution

The fourth proportional to 52,536.90, 78,810.30 and 20,939.34 is: 31,410.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,536.90 : 78,810.30 = 20,939.34 : x
  2. Step 2: Convert to fraction form
    52,536.90/78,810.30 = 20,939.34/x
  3. Step 3: Cross multiply
    52,536.90x = 78,810.30 × 20,939.34
  4. Step 4: Simplify right side
    52,536.90x = 1,650,235,667.20
  5. Step 5: Solve for x
    x = 1,650,235,667.20/52,536.90
  6. Step 6: Final answer
    x = 31,410.98

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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.