Home / 68,368.05-102,513.56-52,533.81

Finding the Fourth Proportional to 68,368.05, 102,513.56 and 52,533.81

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Solution

The fourth proportional to 68,368.05, 102,513.56 and 52,533.81 is: 78,771.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,368.05 : 102,513.56 = 52,533.81 : x
  2. Step 2: Convert to fraction form
    68,368.05/102,513.56 = 52,533.81/x
  3. Step 3: Cross multiply
    68,368.05x = 102,513.56 × 52,533.81
  4. Step 4: Simplify right side
    68,368.05x = 5,385,427,620.79
  5. Step 5: Solve for x
    x = 5,385,427,620.79/68,368.05
  6. Step 6: Final answer
    x = 78,771.12

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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.