Home / 56,159.97-84,218.48-18,712.86

Finding the Fourth Proportional to 56,159.97, 84,218.48 and 18,712.86

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Solution

The fourth proportional to 56,159.97, 84,218.48 and 18,712.86 is: 28,062.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,159.97 : 84,218.48 = 18,712.86 : x
  2. Step 2: Convert to fraction form
    56,159.97/84,218.48 = 18,712.86/x
  3. Step 3: Cross multiply
    56,159.97x = 84,218.48 × 18,712.86
  4. Step 4: Simplify right side
    56,159.97x = 1,575,968,625.65
  5. Step 5: Solve for x
    x = 1,575,968,625.65/56,159.97
  6. Step 6: Final answer
    x = 28,062.13

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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.