Home / 57,455.13-86,159.12-21,929.39

Finding the Fourth Proportional to 57,455.13, 86,159.12 and 21,929.39

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Solution

The fourth proportional to 57,455.13, 86,159.12 and 21,929.39 is: 32,885.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,455.13 : 86,159.12 = 21,929.39 : x
  2. Step 2: Convert to fraction form
    57,455.13/86,159.12 = 21,929.39/x
  3. Step 3: Cross multiply
    57,455.13x = 86,159.12 × 21,929.39
  4. Step 4: Simplify right side
    57,455.13x = 1,889,416,404.09
  5. Step 5: Solve for x
    x = 1,889,416,404.09/57,455.13
  6. Step 6: Final answer
    x = 32,885.08

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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.