Home / 56,265.51-84,372.30-20,717.91

Finding the Fourth Proportional to 56,265.51, 84,372.30 and 20,717.91

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Solution

The fourth proportional to 56,265.51, 84,372.30 and 20,717.91 is: 31,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,265.51 : 84,372.30 = 20,717.91 : x
  2. Step 2: Convert to fraction form
    56,265.51/84,372.30 = 20,717.91/x
  3. Step 3: Cross multiply
    56,265.51x = 84,372.30 × 20,717.91
  4. Step 4: Simplify right side
    56,265.51x = 1,748,017,717.89
  5. Step 5: Solve for x
    x = 1,748,017,717.89/56,265.51
  6. Step 6: Final answer
    x = 31,067.30

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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.