Home / 56,732.64-85,081.68-19,788

Finding the Fourth Proportional to 56,732.64, 85,081.68 and 19,788

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Solution

The fourth proportional to 56,732.64, 85,081.68 and 19,788 is: 29,675.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,732.64 : 85,081.68 = 19,788 : x
  2. Step 2: Convert to fraction form
    56,732.64/85,081.68 = 19,788/x
  3. Step 3: Cross multiply
    56,732.64x = 85,081.68 × 19,788
  4. Step 4: Simplify right side
    56,732.64x = 1,683,596,283.84
  5. Step 5: Solve for x
    x = 1,683,596,283.84/56,732.64
  6. Step 6: Final answer
    x = 29,675.97

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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.