Home / 79,419.18-109,599.75-43,612.50

Finding the Fourth Proportional to 79,419.18, 109,599.75 and 43,612.50

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Solution

The fourth proportional to 79,419.18, 109,599.75 and 43,612.50 is: 60,185.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,419.18 : 109,599.75 = 43,612.50 : x
  2. Step 2: Convert to fraction form
    79,419.18/109,599.75 = 43,612.50/x
  3. Step 3: Cross multiply
    79,419.18x = 109,599.75 × 43,612.50
  4. Step 4: Simplify right side
    79,419.18x = 4,779,919,096.88
  5. Step 5: Solve for x
    x = 4,779,919,096.88/79,419.18
  6. Step 6: Final answer
    x = 60,185.95

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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.