Home / 78,072.48-116,836.32-63,868.32

Finding the Fourth Proportional to 78,072.48, 116,836.32 and 63,868.32

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Solution

The fourth proportional to 78,072.48, 116,836.32 and 63,868.32 is: 95,579.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,072.48 : 116,836.32 = 63,868.32 : x
  2. Step 2: Convert to fraction form
    78,072.48/116,836.32 = 63,868.32/x
  3. Step 3: Cross multiply
    78,072.48x = 116,836.32 × 63,868.32
  4. Step 4: Simplify right side
    78,072.48x = 7,462,139,473.38
  5. Step 5: Solve for x
    x = 7,462,139,473.38/78,072.48
  6. Step 6: Final answer
    x = 95,579.64

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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.