Home / 104,631.60-144,391.32-56,884.64

Finding the Fourth Proportional to 104,631.60, 144,391.32 and 56,884.64

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Solution

The fourth proportional to 104,631.60, 144,391.32 and 56,884.64 is: 78,500.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,631.60 : 144,391.32 = 56,884.64 : x
  2. Step 2: Convert to fraction form
    104,631.60/144,391.32 = 56,884.64/x
  3. Step 3: Cross multiply
    104,631.60x = 144,391.32 × 56,884.64
  4. Step 4: Simplify right side
    104,631.60x = 8,213,648,257.32
  5. Step 5: Solve for x
    x = 8,213,648,257.32/104,631.60
  6. Step 6: Final answer
    x = 78,500.65

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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.