Home / 68,277.76-102,280.96-53,417.28

Finding the Fourth Proportional to 68,277.76, 102,280.96 and 53,417.28

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Solution

The fourth proportional to 68,277.76, 102,280.96 and 53,417.28 is: 80,019.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,277.76 : 102,280.96 = 53,417.28 : x
  2. Step 2: Convert to fraction form
    68,277.76/102,280.96 = 53,417.28/x
  3. Step 3: Cross multiply
    68,277.76x = 102,280.96 × 53,417.28
  4. Step 4: Simplify right side
    68,277.76x = 5,463,570,678.99
  5. Step 5: Solve for x
    x = 5,463,570,678.99/68,277.76
  6. Step 6: Final answer
    x = 80,019.77

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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.