Home / 86,383.14-129,358.23-54,697.62

Finding the Fourth Proportional to 86,383.14, 129,358.23 and 54,697.62

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Solution

The fourth proportional to 86,383.14, 129,358.23 and 54,697.62 is: 81,909.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,383.14 : 129,358.23 = 54,697.62 : x
  2. Step 2: Convert to fraction form
    86,383.14/129,358.23 = 54,697.62/x
  3. Step 3: Cross multiply
    86,383.14x = 129,358.23 × 54,697.62
  4. Step 4: Simplify right side
    86,383.14x = 7,075,587,308.41
  5. Step 5: Solve for x
    x = 7,075,587,308.41/86,383.14
  6. Step 6: Final answer
    x = 81,909.36

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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.