Home / 87,140.07-130,538.79-57,467.34

Finding the Fourth Proportional to 87,140.07, 130,538.79 and 57,467.34

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Solution

The fourth proportional to 87,140.07, 130,538.79 and 57,467.34 is: 86,088.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,140.07 : 130,538.79 = 57,467.34 : x
  2. Step 2: Convert to fraction form
    87,140.07/130,538.79 = 57,467.34/x
  3. Step 3: Cross multiply
    87,140.07x = 130,538.79 × 57,467.34
  4. Step 4: Simplify right side
    87,140.07x = 7,501,717,028.12
  5. Step 5: Solve for x
    x = 7,501,717,028.12/87,140.07
  6. Step 6: Final answer
    x = 86,088.03

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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.