Home / 74,880.10-112,263.99-45,291.88

Finding the Fourth Proportional to 74,880.10, 112,263.99 and 45,291.88

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Solution

The fourth proportional to 74,880.10, 112,263.99 and 45,291.88 is: 67,903.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,880.10 : 112,263.99 = 45,291.88 : x
  2. Step 2: Convert to fraction form
    74,880.10/112,263.99 = 45,291.88/x
  3. Step 3: Cross multiply
    74,880.10x = 112,263.99 × 45,291.88
  4. Step 4: Simplify right side
    74,880.10x = 5,084,647,163.40
  5. Step 5: Solve for x
    x = 5,084,647,163.40/74,880.10
  6. Step 6: Final answer
    x = 67,903.85

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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.