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Finding the Fourth Proportional to 75,004.80, 112,507.20 and 69,537.30

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Solution

The fourth proportional to 75,004.80, 112,507.20 and 69,537.30 is: 104,305.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,004.80 : 112,507.20 = 69,537.30 : x
  2. Step 2: Convert to fraction form
    75,004.80/112,507.20 = 69,537.30/x
  3. Step 3: Cross multiply
    75,004.80x = 112,507.20 × 69,537.30
  4. Step 4: Simplify right side
    75,004.80x = 7,823,446,918.56
  5. Step 5: Solve for x
    x = 7,823,446,918.56/75,004.80
  6. Step 6: Final answer
    x = 104,305.95

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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.