Home / 81,282.58-112,165.44-45,465.67

Finding the Fourth Proportional to 81,282.58, 112,165.44 and 45,465.67

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Solution

The fourth proportional to 81,282.58, 112,165.44 and 45,465.67 is: 62,740.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,282.58 : 112,165.44 = 45,465.67 : x
  2. Step 2: Convert to fraction form
    81,282.58/112,165.44 = 45,465.67/x
  3. Step 3: Cross multiply
    81,282.58x = 112,165.44 × 45,465.67
  4. Step 4: Simplify right side
    81,282.58x = 5,099,676,880.44
  5. Step 5: Solve for x
    x = 5,099,676,880.44/81,282.58
  6. Step 6: Final answer
    x = 62,740.10

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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.