Home / 78,529.30-117,749.33-53,599.53

Finding the Fourth Proportional to 78,529.30, 117,749.33 and 53,599.53

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Solution

The fourth proportional to 78,529.30, 117,749.33 and 53,599.53 is: 80,368.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,529.30 : 117,749.33 = 53,599.53 : x
  2. Step 2: Convert to fraction form
    78,529.30/117,749.33 = 53,599.53/x
  3. Step 3: Cross multiply
    78,529.30x = 117,749.33 × 53,599.53
  4. Step 4: Simplify right side
    78,529.30x = 6,311,308,458.04
  5. Step 5: Solve for x
    x = 6,311,308,458.04/78,529.30
  6. Step 6: Final answer
    x = 80,368.83

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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.