Home / 68,505.12-94,535.64-38,289.60

Finding the Fourth Proportional to 68,505.12, 94,535.64 and 38,289.60

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Solution

The fourth proportional to 68,505.12, 94,535.64 and 38,289.60 is: 52,838.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,505.12 : 94,535.64 = 38,289.60 : x
  2. Step 2: Convert to fraction form
    68,505.12/94,535.64 = 38,289.60/x
  3. Step 3: Cross multiply
    68,505.12x = 94,535.64 × 38,289.60
  4. Step 4: Simplify right side
    68,505.12x = 3,619,731,841.34
  5. Step 5: Solve for x
    x = 3,619,731,841.34/68,505.12
  6. Step 6: Final answer
    x = 52,838.85

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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.