Home / 92,321.04-138,487.08-29,143.20

Finding the Fourth Proportional to 92,321.04, 138,487.08 and 29,143.20

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Solution

The fourth proportional to 92,321.04, 138,487.08 and 29,143.20 is: 43,716.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,321.04 : 138,487.08 = 29,143.20 : x
  2. Step 2: Convert to fraction form
    92,321.04/138,487.08 = 29,143.20/x
  3. Step 3: Cross multiply
    92,321.04x = 138,487.08 × 29,143.20
  4. Step 4: Simplify right side
    92,321.04x = 4,035,956,669.86
  5. Step 5: Solve for x
    x = 4,035,956,669.86/92,321.04
  6. Step 6: Final answer
    x = 43,716.54

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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.