Home / 56,657.72-84,998.93-18,708.66

Finding the Fourth Proportional to 56,657.72, 84,998.93 and 18,708.66

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Solution

The fourth proportional to 56,657.72, 84,998.93 and 18,708.66 is: 28,067.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,657.72 : 84,998.93 = 18,708.66 : x
  2. Step 2: Convert to fraction form
    56,657.72/84,998.93 = 18,708.66/x
  3. Step 3: Cross multiply
    56,657.72x = 84,998.93 × 18,708.66
  4. Step 4: Simplify right side
    56,657.72x = 1,590,215,988.19
  5. Step 5: Solve for x
    x = 1,590,215,988.19/56,657.72
  6. Step 6: Final answer
    x = 28,067.07

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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.