Home / 87,262.82-120,419.47-53,328.08

Finding the Fourth Proportional to 87,262.82, 120,419.47 and 53,328.08

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Solution

The fourth proportional to 87,262.82, 120,419.47 and 53,328.08 is: 73,590.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,262.82 : 120,419.47 = 53,328.08 : x
  2. Step 2: Convert to fraction form
    87,262.82/120,419.47 = 53,328.08/x
  3. Step 3: Cross multiply
    87,262.82x = 120,419.47 × 53,328.08
  4. Step 4: Simplify right side
    87,262.82x = 6,421,739,129.72
  5. Step 5: Solve for x
    x = 6,421,739,129.72/87,262.82
  6. Step 6: Final answer
    x = 73,590.78

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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.