Home / 87,265.14-120,412.77-49,017.36

Finding the Fourth Proportional to 87,265.14, 120,412.77 and 49,017.36

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Solution

The fourth proportional to 87,265.14, 120,412.77 and 49,017.36 is: 67,636.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,265.14 : 120,412.77 = 49,017.36 : x
  2. Step 2: Convert to fraction form
    87,265.14/120,412.77 = 49,017.36/x
  3. Step 3: Cross multiply
    87,265.14x = 120,412.77 × 49,017.36
  4. Step 4: Simplify right side
    87,265.14x = 5,902,316,095.69
  5. Step 5: Solve for x
    x = 5,902,316,095.69/87,265.14
  6. Step 6: Final answer
    x = 67,636.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.