Home / 69,769.14-96,279.40-39,557.28

Finding the Fourth Proportional to 69,769.14, 96,279.40 and 39,557.28

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Solution

The fourth proportional to 69,769.14, 96,279.40 and 39,557.28 is: 54,587.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,769.14 : 96,279.40 = 39,557.28 : x
  2. Step 2: Convert to fraction form
    69,769.14/96,279.40 = 39,557.28/x
  3. Step 3: Cross multiply
    69,769.14x = 96,279.40 × 39,557.28
  4. Step 4: Simplify right side
    69,769.14x = 3,808,551,184.03
  5. Step 5: Solve for x
    x = 3,808,551,184.03/69,769.14
  6. Step 6: Final answer
    x = 54,587.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.