Home / 212,354.73-318,535.13-54,583.34

Finding the Fourth Proportional to 212,354.73, 318,535.13 and 54,583.34

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Solution

The fourth proportional to 212,354.73, 318,535.13 and 54,583.34 is: 81,875.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,354.73 : 318,535.13 = 54,583.34 : x
  2. Step 2: Convert to fraction form
    212,354.73/318,535.13 = 54,583.34/x
  3. Step 3: Cross multiply
    212,354.73x = 318,535.13 × 54,583.34
  4. Step 4: Simplify right side
    212,354.73x = 17,386,709,846.52
  5. Step 5: Solve for x
    x = 17,386,709,846.52/212,354.73
  6. Step 6: Final answer
    x = 81,875.78

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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.