Home / 81,599.50-122,284.38-64,885.35

Finding the Fourth Proportional to 81,599.50, 122,284.38 and 64,885.35

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Solution

The fourth proportional to 81,599.50, 122,284.38 and 64,885.35 is: 97,236.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,599.50 : 122,284.38 = 64,885.35 : x
  2. Step 2: Convert to fraction form
    81,599.50/122,284.38 = 64,885.35/x
  3. Step 3: Cross multiply
    81,599.50x = 122,284.38 × 64,885.35
  4. Step 4: Simplify right side
    81,599.50x = 7,934,465,497.72
  5. Step 5: Solve for x
    x = 7,934,465,497.72/81,599.50
  6. Step 6: Final answer
    x = 97,236.69

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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.