Home / 53,659.17-80,470.53-18,590.64

Finding the Fourth Proportional to 53,659.17, 80,470.53 and 18,590.64

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Solution

The fourth proportional to 53,659.17, 80,470.53 and 18,590.64 is: 27,879.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,659.17 : 80,470.53 = 18,590.64 : x
  2. Step 2: Convert to fraction form
    53,659.17/80,470.53 = 18,590.64/x
  3. Step 3: Cross multiply
    53,659.17x = 80,470.53 × 18,590.64
  4. Step 4: Simplify right side
    53,659.17x = 1,495,998,653.84
  5. Step 5: Solve for x
    x = 1,495,998,653.84/53,659.17
  6. Step 6: Final answer
    x = 27,879.65

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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.