Home / 56,871.58-85,304.28-17,428.81

Finding the Fourth Proportional to 56,871.58, 85,304.28 and 17,428.81

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Solution

The fourth proportional to 56,871.58, 85,304.28 and 17,428.81 is: 26,142.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,871.58 : 85,304.28 = 17,428.81 : x
  2. Step 2: Convert to fraction form
    56,871.58/85,304.28 = 17,428.81/x
  3. Step 3: Cross multiply
    56,871.58x = 85,304.28 × 17,428.81
  4. Step 4: Simplify right side
    56,871.58x = 1,486,752,088.31
  5. Step 5: Solve for x
    x = 1,486,752,088.31/56,871.58
  6. Step 6: Final answer
    x = 26,142.27

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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.