Home / 56,890.73-85,349.78-21,830.39

Finding the Fourth Proportional to 56,890.73, 85,349.78 and 21,830.39

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Solution

The fourth proportional to 56,890.73, 85,349.78 and 21,830.39 is: 32,750.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,890.73 : 85,349.78 = 21,830.39 : x
  2. Step 2: Convert to fraction form
    56,890.73/85,349.78 = 21,830.39/x
  3. Step 3: Cross multiply
    56,890.73x = 85,349.78 × 21,830.39
  4. Step 4: Simplify right side
    56,890.73x = 1,863,218,983.81
  5. Step 5: Solve for x
    x = 1,863,218,983.81/56,890.73
  6. Step 6: Final answer
    x = 32,750.84

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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.