Home / 82,225.90-123,388.07-35,478.78

Finding the Fourth Proportional to 82,225.90, 123,388.07 and 35,478.78

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Solution

The fourth proportional to 82,225.90, 123,388.07 and 35,478.78 is: 53,239.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,225.90 : 123,388.07 = 35,478.78 : x
  2. Step 2: Convert to fraction form
    82,225.90/123,388.07 = 35,478.78/x
  3. Step 3: Cross multiply
    82,225.90x = 123,388.07 × 35,478.78
  4. Step 4: Simplify right side
    82,225.90x = 4,377,657,550.06
  5. Step 5: Solve for x
    x = 4,377,657,550.06/82,225.90
  6. Step 6: Final answer
    x = 53,239.40

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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.