Home / 71,483.04-107,189.64-21,553.74

Finding the Fourth Proportional to 71,483.04, 107,189.64 and 21,553.74

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Solution

The fourth proportional to 71,483.04, 107,189.64 and 21,553.74 is: 32,320.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,483.04 : 107,189.64 = 21,553.74 : x
  2. Step 2: Convert to fraction form
    71,483.04/107,189.64 = 21,553.74/x
  3. Step 3: Cross multiply
    71,483.04x = 107,189.64 × 21,553.74
  4. Step 4: Simplify right side
    71,483.04x = 2,310,337,631.25
  5. Step 5: Solve for x
    x = 2,310,337,631.25/71,483.04
  6. Step 6: Final answer
    x = 32,320.08

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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.