Home / 75,285.48-112,758.30-43,223.40

Finding the Fourth Proportional to 75,285.48, 112,758.30 and 43,223.40

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Solution

The fourth proportional to 75,285.48, 112,758.30 and 43,223.40 is: 64,737.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,285.48 : 112,758.30 = 43,223.40 : x
  2. Step 2: Convert to fraction form
    75,285.48/112,758.30 = 43,223.40/x
  3. Step 3: Cross multiply
    75,285.48x = 112,758.30 × 43,223.40
  4. Step 4: Simplify right side
    75,285.48x = 4,873,797,104.22
  5. Step 5: Solve for x
    x = 4,873,797,104.22/75,285.48
  6. Step 6: Final answer
    x = 64,737.54

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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.