Home / 87,141.07-130,540.29-57,468.34

Finding the Fourth Proportional to 87,141.07, 130,540.29 and 57,468.34

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Solution

The fourth proportional to 87,141.07, 130,540.29 and 57,468.34 is: 86,089.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,141.07 : 130,540.29 = 57,468.34 : x
  2. Step 2: Convert to fraction form
    87,141.07/130,540.29 = 57,468.34/x
  3. Step 3: Cross multiply
    87,141.07x = 130,540.29 × 57,468.34
  4. Step 4: Simplify right side
    87,141.07x = 7,501,933,769.42
  5. Step 5: Solve for x
    x = 7,501,933,769.42/87,141.07
  6. Step 6: Final answer
    x = 86,089.53

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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.