Home / 86,542.24-129,814.40-30,383.76

Finding the Fourth Proportional to 86,542.24, 129,814.40 and 30,383.76

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Solution

The fourth proportional to 86,542.24, 129,814.40 and 30,383.76 is: 45,576.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,542.24 : 129,814.40 = 30,383.76 : x
  2. Step 2: Convert to fraction form
    86,542.24/129,814.40 = 30,383.76/x
  3. Step 3: Cross multiply
    86,542.24x = 129,814.40 × 30,383.76
  4. Step 4: Simplify right side
    86,542.24x = 3,944,249,574.14
  5. Step 5: Solve for x
    x = 3,944,249,574.14/86,542.24
  6. Step 6: Final answer
    x = 45,576.01

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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.