Home / 56,788.14-85,127.98-21,239.82

Finding the Fourth Proportional to 56,788.14, 85,127.98 and 21,239.82

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Solution

The fourth proportional to 56,788.14, 85,127.98 and 21,239.82 is: 31,839.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,788.14 : 85,127.98 = 21,239.82 : x
  2. Step 2: Convert to fraction form
    56,788.14/85,127.98 = 21,239.82/x
  3. Step 3: Cross multiply
    56,788.14x = 85,127.98 × 21,239.82
  4. Step 4: Simplify right side
    56,788.14x = 1,808,102,972.16
  5. Step 5: Solve for x
    x = 1,808,102,972.16/56,788.14
  6. Step 6: Final answer
    x = 31,839.45

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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.