Home / 87,442.62-130,666.03-65,662.07

Finding the Fourth Proportional to 87,442.62, 130,666.03 and 65,662.07

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Solution

The fourth proportional to 87,442.62, 130,666.03 and 65,662.07 is: 98,119.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,442.62 : 130,666.03 = 65,662.07 : x
  2. Step 2: Convert to fraction form
    87,442.62/130,666.03 = 65,662.07/x
  3. Step 3: Cross multiply
    87,442.62x = 130,666.03 × 65,662.07
  4. Step 4: Simplify right side
    87,442.62x = 8,579,801,802.88
  5. Step 5: Solve for x
    x = 8,579,801,802.88/87,442.62
  6. Step 6: Final answer
    x = 98,119.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.