Home / 57,281.64-85,929.99-21,253.19

Finding the Fourth Proportional to 57,281.64, 85,929.99 and 21,253.19

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Solution

The fourth proportional to 57,281.64, 85,929.99 and 21,253.19 is: 31,882.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,281.64 : 85,929.99 = 21,253.19 : x
  2. Step 2: Convert to fraction form
    57,281.64/85,929.99 = 21,253.19/x
  3. Step 3: Cross multiply
    57,281.64x = 85,929.99 × 21,253.19
  4. Step 4: Simplify right side
    57,281.64x = 1,826,286,404.17
  5. Step 5: Solve for x
    x = 1,826,286,404.17/57,281.64
  6. Step 6: Final answer
    x = 31,882.58

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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.