Home / 42,009.40-62,910.64-27,172.88

Finding the Fourth Proportional to 42,009.40, 62,910.64 and 27,172.88

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Solution

The fourth proportional to 42,009.40, 62,910.64 and 27,172.88 is: 40,692.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,009.40 : 62,910.64 = 27,172.88 : x
  2. Step 2: Convert to fraction form
    42,009.40/62,910.64 = 27,172.88/x
  3. Step 3: Cross multiply
    42,009.40x = 62,910.64 × 27,172.88
  4. Step 4: Simplify right side
    42,009.40x = 1,709,463,271.44
  5. Step 5: Solve for x
    x = 1,709,463,271.44/42,009.40
  6. Step 6: Final answer
    x = 40,692.40

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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.