Home / 51,487.04-77,231.34-20,322

Finding the Fourth Proportional to 51,487.04, 77,231.34 and 20,322

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Solution

The fourth proportional to 51,487.04, 77,231.34 and 20,322 is: 30,483.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,487.04 : 77,231.34 = 20,322 : x
  2. Step 2: Convert to fraction form
    51,487.04/77,231.34 = 20,322/x
  3. Step 3: Cross multiply
    51,487.04x = 77,231.34 × 20,322
  4. Step 4: Simplify right side
    51,487.04x = 1,569,495,291.48
  5. Step 5: Solve for x
    x = 1,569,495,291.48/51,487.04
  6. Step 6: Final answer
    x = 30,483.31

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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.