Home / 289,631.03-434,445.68-73,489.34

Finding the Fourth Proportional to 289,631.03, 434,445.68 and 73,489.34

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Solution

The fourth proportional to 289,631.03, 434,445.68 and 73,489.34 is: 110,233.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,631.03 : 434,445.68 = 73,489.34 : x
  2. Step 2: Convert to fraction form
    289,631.03/434,445.68 = 73,489.34/x
  3. Step 3: Cross multiply
    289,631.03x = 434,445.68 × 73,489.34
  4. Step 4: Simplify right side
    289,631.03x = 31,927,128,235.68
  5. Step 5: Solve for x
    x = 31,927,128,235.68/289,631.03
  6. Step 6: Final answer
    x = 110,233.80

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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.