Home / 79,140.60-109,215.33-43,330.02

Finding the Fourth Proportional to 79,140.60, 109,215.33 and 43,330.02

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Solution

The fourth proportional to 79,140.60, 109,215.33 and 43,330.02 is: 59,796.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,140.60 : 109,215.33 = 43,330.02 : x
  2. Step 2: Convert to fraction form
    79,140.60/109,215.33 = 43,330.02/x
  3. Step 3: Cross multiply
    79,140.60x = 109,215.33 × 43,330.02
  4. Step 4: Simplify right side
    79,140.60x = 4,732,302,433.21
  5. Step 5: Solve for x
    x = 4,732,302,433.21/79,140.60
  6. Step 6: Final answer
    x = 59,796.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.