Home / 75,687.08-104,448.10-42,153

Finding the Fourth Proportional to 75,687.08, 104,448.10 and 42,153

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Solution

The fourth proportional to 75,687.08, 104,448.10 and 42,153 is: 58,171.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,687.08 : 104,448.10 = 42,153 : x
  2. Step 2: Convert to fraction form
    75,687.08/104,448.10 = 42,153/x
  3. Step 3: Cross multiply
    75,687.08x = 104,448.10 × 42,153
  4. Step 4: Simplify right side
    75,687.08x = 4,402,800,759.30
  5. Step 5: Solve for x
    x = 4,402,800,759.30/75,687.08
  6. Step 6: Final answer
    x = 58,171.10

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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.