Home / 87,663.08-120,952.32-53,659.28

Finding the Fourth Proportional to 87,663.08, 120,952.32 and 53,659.28

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Solution

The fourth proportional to 87,663.08, 120,952.32 and 53,659.28 is: 74,035.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,663.08 : 120,952.32 = 53,659.28 : x
  2. Step 2: Convert to fraction form
    87,663.08/120,952.32 = 53,659.28/x
  3. Step 3: Cross multiply
    87,663.08x = 120,952.32 × 53,659.28
  4. Step 4: Simplify right side
    87,663.08x = 6,490,214,405.53
  5. Step 5: Solve for x
    x = 6,490,214,405.53/87,663.08
  6. Step 6: Final answer
    x = 74,035.89

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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.